Well that is a hard question because everyone has personal favorites. But to answer your question the best I can...
Thompson Center - Omega, Triumph, Encore
Knight - Disc Elite, Disc Extreme
CVA - Accura, Apex
Traditions - Pursuit Pro
all of these seem to get real good reviews. But the best way to decide if that is the rifle for you is to handle as many of them as you can. See if they fit you. See if they are pleasing to the eye to you.
Personally I like the old style rifles but if I had to get a new one it would be an Accura or a Triumph. This is based only on the posts I have read about their accuracy and ease of cleaning.