Vegeta wasnt a 'strategical genius' at all, despite being called it multiple times. when it came to fighting, he was just like a common warrior, BUT, the reason they keep calling him 'strategical' or whatever isnt from his fighting skill, its from the psychological skills. out of all the charactors, he pulled the most bluffs, he messed with opponents minds, tried to throw them off mentally so he could win physically.
reason for him doing really REALLY stupid things like letting cell absorb #18 is because of his 'saiyan pride'. hes an extremely c0cky, overly confident prick. he didnt expect cell to become as strong as he did, but he did want at least more of a challange. obviously if he knew he would get his ass handed to him, he would have finished cell right then and there.
and what orz said about goku is totally right, he was a lot smarter then he came off as. powering up a kame to the point where CELL was afraid of it destroying the planet, then instant transmitting right beside him, brilliant idea. it didnt work, i know, but they obviously wouldnt expect him to recover from having his top half blown apart. making the spirit bomb far above on freeza, another smart idea, again didnt work, but... yeah, its the thought that counts.
okay enough of this fanboy bullcrap, charactor opinions aside, lets get on to the battle opinions, wahaha!
to me, i have to say a LOT of the battles were dragged on far too long, with far too much pointless filler crap. ok, honestly if you were fighting some guy who seems like they could be pretty strong, would you NOT try your hardest??? why the hell dont they just go full-out and kill whoever they're fighting before they get a chance to do the same to them??? the only person i see SOME logic in doing this is vegeta, because of his overconfident personality. besides that, its fairly pointless.
big example is how freeza gives goku a whole frickin episode to charge his spirit bomb.... meh, id have killed him right there, idiot stickin his arms in the air, leaves himself totally open
which brings me to the fights, id say any fight between goku and vegeta are probably among the top. no nonsense, flat out kicking eachothers asses, the saiyan saga fight was my favorite, including the whole waiting for goku thing. the saibamen, chaotzu blowing himself up, tien freaking out, piccolo taking the hit for gohan, gohan freaking out, krillin not knowing what the hell to do about anything, the whole 'race against the clock' for goku to get back before they decide to trash the planet.
although im kinda pissed about how vegeta only uses the gallic gun once.... ever. i mean, he was going to blow up the PLANET with that attack, and compared to later on, they were weak little pathetic nothings. if you think about it, in comparison gallic gun is stronger then final flash, gallic gun would have taken out the planet, so would final flash.... after a much longer charge. its kind of a given that the attack would become stronger as the user becomes stronger, so by the time he learned final flash, his gallic gun would have been INSANELY strong.
then theres the way gokus kame fights back against it.... he was so beat-up and weak, that was the last of his energy he put into the kame, so chances are it wasnt as strong as he could have had it.... yet, it beat the planet-destroying gallic gun.... and somehow later on, it doesnt get stronger? consistancy is somewhat akward.....
i know its GT... but i really liked the goku vs bebi battles.... im not really sure why, but i did... something about the whole way that every time goku seemed to become stronger, almost instantly he gets screwed over again untill he lucks out in the end... uubu... bah, i find that akward... but the way it all ended sucked to me, by that time, the whole 'blast-the-guy-into-the-sun' deal had been done twice in movies. the third time around, it wasnt anywhere NEAR as cool as brollys death, it sorta sucked really..... but thats GT and this is a DBZ game/forum/whatever, so i should stop talking now...
[edit] sorry bout the lengthyness of it >_<
feel free to point out any flaws i might have made or things i might have missed, mainly with the whole gallic gun dealie