well me, im also the grand champion, and i started in the arena about level 2 and won my first few matches. the arena did help me get to my current level though (lvl.18) i thought that stoopid gray prince was easy, but my marksman skill aint very good, so i just went in therewith my ebony longsword (bang, slash, euggh! you got me! etc.)
i didnt bother with doin the gray princes quest. what does he give you if you would have done it anyone? and those animal fights, god, they are easy. 2k for just beatin up 3 minotor lords? there just givin money away!!