No...
Opposite way around IMO. The P97 is the better overall pistol. P97 has shorter/lighter/better DA trigger, better SA trigger, better grip ergonomics, and newer (improved) features. Its also more accurate in my experience.
P90 is a reliable workhorse, but lacks many of the up-to-date features of the P97 (such as improved magazine release, slide serations, grip ergonomics, etc).
Either pistol will get the job done; however, the P97 is the more innovative/improved design. My only complaint with the P97 is the slide stop problem. But, it appears that its only a small % of pistols experience that problem...and mine is one of the lemons.