ill make a list
1. most astonishing: boss 3 (tentacle fish) (from twilight princess)
reason: i thought i would just be fighting tentacles, but then, i saw the big ass fish... i let my friend look at him on his file for the first time, and he whimpered for me to fight him lol)
2. most difficult: through the fire and flames: expert (from guitar hero 3)
reason: im not sure if its a boss but HOLY SHIT!!! still havent beaten it!!!
3. longest lasting: sephiroth (from kingdom hearts 2)
reason: i thought beating him on the first game was hard... i actualy beat him without glide on KH2, and it still took 20 minutes (to me at least.... i didn't time it)
PS: final boss in KH2 was technically the longest, but all of those little segments i diddnt consider 1 boss.
4. most epic: bowser (from super mario galaxy)
reason: the first time it ever showed bowser actually die, (i hated his respawn in the mushroom kingdom....) and i got to blow up a few planets along the way :)
5. most intense(as in hysterically, like "omg, im gonna die!"): dantes brother (from DevilMayCry 3, sorry, forgot his name)
reason: half of the game play time, i was franticially running around in circles, trying to avoid his little force shots along the ground, and his blasts from above, but i eventually beat him...
6. easiest boss: gelatinous blob (boss in the game board in gunstar heroes)
reason: you dont even have to move T_T
thank you for reading