I would definitly go to a dealer that has both (if possible). Test drive them both with the same speakers and music. Luckily when I purchased my Integra, the dealer was very honest with me and didn't try to talk me into a Krell or Parasound setup (Although it would be nice to be able to afford gear like that ). I love my Integra DTR-7.4. It natural sounding. I would never describe it as warm like my tube amps and vinyl.

M80's VP150 QS8's Earthquake SuperNova MKV-15
Integra DTR-7.4 Outlaw 755 Outlaw M200's Outlaw ICBM