Whoot finally got diablos once I figured out you could draw Demi from him and use it against him. I'm so not good with the whole draw/junction system.
The junction system is your best friend in this game. I'm playing it now, and I'm right before the mission in Timber. I've already got my characters' HP up to around 4000 or so.
Question about VIII... Do you need to keep everyone leveled the same level? Right now Squall is 22, Rinoa and Zell are 18 and then Irvine and Quistis are 13 and Selphie is 11... I'm feeling like I should be leveling it out but in VII I pretty much just used Vincent, Cloud, and Cid all the way through. And I can't take Squall out of the party so he'll be over-leveled anyways (he has 2000 more HP than the others already!) So... will it kill me to not use all the people equally?
It doesn't really make a difference. The monsters level up as you do, so you have people that go through the entire game and run away from every fight, just so it stays easy. I like to go the other route, and not really grind my characters up, but my GFs abilities instead. Check your junctions. Who all has HP-J? I'm guessing just Squall if the difference in hit points is that drastic. That, or he has really good magic backing it. You want to spread out your GFs equally so that your team has a good stat base.
Another thing you want to do is have Quetzalcotl learn the Card ability, then learn Card Mod. Card by itself isn't that useful, but with Card Mod, the game is a breeze. In fact, this is the reason Triple Triad is so important. When you beat Ifrit, Diabolos, etc. you get their cards. With Card Mod, you can turn the cards into items, and the rarer the card, the better the payout. If you can win a Mezmerize card, you can mod it, and with a few screws, you can walk into a weapon's shop and get a new gunblade for Squall. Doing this, I've got his second best weapon in the game without even leaving the island yet.
(Also, win Tonberry cards whenever you can. They mod out to 30 Deaths using Diabolos' Life-Mag Refine. Put 100 Deaths into your Status Junction. Nothing shall survive.)
That was Steven. He couldn't resist.