very tough decision to choose...
the eb16 has reverb, a little multi band EQ, a delay.. some other basic fx like that... not very much compared to the sp303. I think the 303 has way better fx, more fx.. including compressors and compressor like fx. It's not built in though..
also, the 303 is perfect to link up as a second sampler with the mpc.. plus, you can record your entire finished beat onto a 303 pad if you want which adds another dimension.
you can bounce samples around in the 303, sample them back into the 2000...
I will have to go with the 303.
MPC-Live/Remix16