Still have yet to finish writing the Tucson review... but hear this:
I have been converted... this is the fastest (as fast as a Focus TDCi), nicest, most incredibly, stupidly, fully-loaded CUV I have ever tested in this price range. And it's pogi, too.
Twin sunroofs, great stereo with a subwoofer (Sorento's bass reproduction is pathetic), 18" mags, keyless, stability control, hill descent control, center diff lock, adaptive suspension, nice leather, power driver's seat... gah... it's wonderful.
Oh... the Sorento has much more space, but unless you have six kids, I think the Tucson will be sorely tempting...