You can check out sample rate conversion quality comparisons for lots of programs
here. SONAR performs very well; any artifacts are around -140 dB, which makes them essentially irrelevant. It's also interesting to note which companies have upped their game and which haven't. Live 9.03 was pretty bad, but Live 9.11 is excellent; Bitwig is one of the worst. Adobe Audition, Logic, and Audacity are among the top programs, but Cubase and Pro Tools don't fare so well.