I tried to list things that weren't Naruto, Bleach, One Piece, Fairy Tail or some other well known big name.
I also didn't list those tournament fighters because most of them aren't really anything special.
Who here wants to watch Beyblade?
I guess there's Shaman King that's a tournament shonen fighter, right? I never watched it myself... so can't say.
There's Shaman King, Blue Exorsist, Soul Eater (which I swear he said he saw some of), JoJo's, Hitman Reborn (which you listed. I blanked on it earlier), Hunter X Hunter (2011), Dragon Ball (not Z. A lot of people never saw the original, which is way
different from Z), Gintama (more of a comedy I guess, but it still sorta counts), Beelzebud, Fist of the North Star, Rurouni Kenshin, and Yu Yu Hakusho. All of Which I enjoyed much more than Naruto, Bleach, Inuyasha, and Fairy Tail. Those four are bottom of the barrel in my opinion. Not Better than One Piece, though. That show is the shiz, man (I dunno if Klyde would be into it, since it tends to be very silly a lot of the time, though).
In addition there's The Law of Ueki, The Flames of Recca, Buso Renkin, Elemental Gelade, Mar, and Rave Master, but I either never saw them (but heard they were mediocre) or saw them a long time ago, and don't remember anything about them (besides being mediocre). (Mediocre's still watchable, BTW, and I have met one person per show who quite enjoyed each of them, though they are in the minority)
Oh yeah, and there's Toriko, Saiyuki, D.Gray Man, Fushugi Yuugi, Get-Backers, and Samurai Deeper Kyo, which I know nothing about, besides one or two people per show like them. Guess that means I got some more to try.