That really depends upon your level of playing. There are a lot of virtuostic Solo's written for bass. My Conductor, Peter Askim, won some awards at the ISB with a few of his solo's.
www.peteraskim.com is his website.
The Kussevitsky Concerto is a piece that if played correctly should 'wow' your classmates. It is kind of hard though. The double-stop passage gets a little rough.
The Dragonetti isn't easy, but it isn't hard. A senior shouldn't really have any problems with it. It has some parts in it that will impress peope.
Bottesini wrote a lot of pieces for bass, and all of them sound really nifty. My favort bottesini piece is the Nocturne. Lemur Music has it,
www.lemurmusic.com
Dittersdorf Concerto is about the same level as dragonetti, but instead of being techincal, its more musical.
The Capuzzi Concerto is really a last resort. It sounds cool, and it's fun to play, but not difficult at all. It is a little hard to grasp musically, it was hard for me in 8th grade, but after some time I got it and preformed it in 9th grade in a competition.
Let us know of your level, and I could probably help more.
Peter
