I don't recall having any problems with Wrexsoul. And akshully, there are quite a few enemies that can really ruin your day if you don't know what you're doing. Bottomswell is a good example; so is Carry Armor. It's a huge pain in the arse when enemies can take out characters instantly like that.
You need to kill the right one of your 3 characters for Wrexsoul to be targetable, otherwise (without abusing bugs) it is invincible. In FFIX and FFX too, there are bosses that demand a few tricks to be taken down. There is none of that in FFVII. Besides, Bottomswell is a joke. I'll give you Carry Armor though, it must be the only storyline boss not to be completely helpless in FFVII.
I also wonder whether you've forgotten about the Midgar Zolom and Master Tonberry. They can be quite devastating.
Midgar Zolom, devastating ? In the beginning, when you're supposed to catch a chocobo to evade it, yes, of course. But later in the game ? No, not at all. It's not even a good example, since I can counter this by using the "Dragon" example above Gizamaluke's Grotto in FFIX. The moogles tell you not to go there, but if you do, I guess it also is quite devastating.
As for Master Tonberry, it's a push-over. It only counter-attacks with Everyone's Grudge if you blindly attack it with your three characters every turn, and only performs an Instant-Death attack after walking all the way to your characters. Not only that, but FFVII features the Death Force E.Skill, that voids all Instant Death attacks. Plus, the thing has no resistance to damage whatsoever. FFVI's Master Pug is a lot more dangerous, and can block your elemental attacks thanks to WallChange.
Did you forget the Cave of the Gi, too? It's full of enemies that can really f*ck you up, especially if you're running short on items (which is very common at that point in the game). Fortunately, there's a trick to beating them, but not all first-time players know that.
Wait, the Cave of the Gi is hard ? That's a first. And no, I don't see how you'd run short on items at that point, either. Item shops aren't rare in FFVII, and you'd have to do something stupid like wasting your gil on HP Pluses materias not to be able to keep a healthy supply.
For your information, you can also do stupid things in FFVI, FFIX and FFX.
And don't get me started on enemies that use confuse. That's an incredibly common status attack in FF7 (are we talking about the same game). It's another thing that frequently turns routine battles into nightmares if you let your guard down. The worst thing of all is when one of your characters gets confused after getting on the receiving end of Supernova; it's a real kick in the balls.
I'll give you Confusion, though Yuffie's Conformer is unaffected by the status, and the availability of the Ribbon accessory / Added Effect make it a non-issue. FFIX doesn't have a Ribbon-like ability, and you can only get it very late in FFX (plus, you'd have to play the International/PAL version). Stop/Mini/Petrify/Berserk ?... ...Almost never used against you. And one amusing fact : the only shops that sell Echo Screens are in Wall Market and Gold Saucer, but you never feel their lack of availability. Likewise, I've never felt the need to waste a materia slot on Heal, either - especially since White Wind fixes so many status effects.
It's all relative. The materia system requires far more thought than a lot of FF growth/equipment systems.
This doesn't really mean anything. FFIV, for instance, has the most basic level-up system, but it's arguably one of the harder FF titles. Especially in its original Japanese release. Besides, you don't have to know the ins-and-outs of the materia system to get through the game just fine. As I said, All+Restore does not demand a heavy brainstorming, as does equiping things like Double Cut or Enemy Skills.
In fact, the materia system only makes things easier, since you can easily interchange materias from one character to another. You didn't level RedXIII before Cosmo Canyon ?... ...No problem, just slap on him the materias you leveled, and he's a beast. Compare to parts in FFVI, FFIX or FFX in which you're forced to play characters that you potentially didn't use, and you'll come to the conclusion that FFVI, FFIX and FFX are harder.
Thirdly, the amount of time and effort required to get a few of the nerfed abilities in FFX is not very great; it's much less than the time and effort needed to power level.
True, but this doesn't make FFX easier than FFVII. FFVII hands the ultimate weapons on a silver platter.
I'd like to know how you spammed limit breaks in FF7. Is there an "aura" materia that I don't know about? Maybe there's a "meltdown" materia too? 
You know what I'm talking about. The mechanics behind building the Aeons' Overdrive gauges and the ones behind the building of your characters' Limit gauges is essentially the same. You can take some time to prepare a Meteorrain, in the same way you build up the Aeons' gauges before boss fights.
Beta can't compare the Aeons in terms of nerfedness.
That's right, you can't compare them : thanks to Magic Hammer, you can keep using Beta again and again throughout the battles, whereas Aeons are instantly killed by the later bosses - allowing each of them only one action.
Oh, and there's something else I forgot about.
Yojimbo.
Yes, I'm aware that FF7 has an "instant win attack too, but it's incredibly hard to get and it requires using Cait Sith, so it surely doesn't count. Yojimbo is very reliable
You must be kidding. Yojimbo could be efficient against random enemies, but not against bosses that require a Level5 Zanmato (almost all of them). And to reach such a level, you have to hand the Aeon hundreds millions of gil. Not very practical, don't you think ? If you're gonna talk about exploits like this, need I remind you that Cait Sith's slots can be controlled so Game Over works in every boss fight ? No improbable amount of gil needed, there.
