It's harder to find fighting games that aren't fun to watch than the other way around. Virtua Fighter can be boring if you're not into fighters, but that's about it. I recommend watching whatever you want.
As for players, I can't think of many top players that aren't likable. Floe can be whiny, but I like him enough. Marn has at least been trying to clean up his act. And I like FChamp dammit!
ChrisG and OMGitzAndre are probably the closest thing you got to dudes who aren't good people (well, besides Aris, but uhh we don't count Tekken guys). The former because he's a quitter, the latter because he's a pretty mean guy to the people he plays, while pretty much all other tournament players may get serious in the clutch but tend to constantly laugh and joke outside of matches.
--
Twostuck, Homestuck RPG: http://www.gamefaqs.com/boards/8-gamefaqs-contests/62168402