Except for countless deaths against Omega Weapon, a few to high level Ruby Dragons casting Breath in my first playthrough and the occassional Malboro (if you're not prepared with top notch status defense, they will slaughter you), the only time I've died in FFVIII was when Irvine got confused with 100 Death junctioned to status attack. That was almost funny
But yeah, the bosses in this game are very easy IMO. Especially if you run a low-level game and has some of the best junctioning magic.. you will slaughter everything in your way