I looked at Rivals team recriting rankings back all the way to 02, and Leach has had only 1 top 25 class, they were ranked 25th in 06. Prior to Leach, I don't recall Spike Dykes having great recruiting classes either, so I would speculate that it is not that Leach is a poor recruiter.
UW has only had 2 top 25 classes under Willingham, which was last year's at 24 and 19th in 04. However, under Neuheisel they had top 25 classes going back through 02 (which is as far back as rivals records on their website). If they are winning, UW can attract better talent than Tech.
Washington has won 15 Pac 10 championships, 7 Rose Bowls, and four national championships. They have the 17th ranked all-time winning percentage in the NCAA.
Tech has won 2 conference championships, both in the SWC, in 76 and 94.
You're talking history, which as I said is all well and good, but doesn't mean squat today. I wouldn't argue that UW has better history than Tech does. But to put in another way, would you rather coach at Army or Virginia Tech? Who has more national championships? Notre Dame has more national championships than Florida has, but Urban Meyer chose Florida. Going forward, Tech has a better chance to be competitive, on an ongoing basis, than Washington does. That's not to say the job at UW is a no-hoper, but I think it's regressed to the point where they have to look at hiring a HC from a D-2 or D1-AA school to try to rebuild. They can't go after an established D-1 coach. JMHO.