The 2001 and 2002 are a bit stronger in the HP arena, but ITRs where made to be CW, so that excludes them. 1998 looks better, smoother, and slightly more aggresive, but the 1997 says "who me?" and is the rarest of the rare. Being that I'm a big fan of the sleeper, and enjoy the exclusivity I'm going to say 1997.