Spiral Stairs. That's what's wrong with it.
Also, yeah, that's one of the reasons I tell people not to get best-ofs. Especially for bands who make ALBUMS, instead of collections of songs.
Some of those songs you listed are highlights for sure, but Slience Kid is an amazing opener (arguably Pavement's best, tho I'm partial to We Dance and I know some would point to Summer Babe), and Elevate Me Later is also prime shit. I think both of those songs are better than Unfair, personally.
Stop Breathin' and Newark Wilder are great stoner tracks and shouldn't be discounted, either. With the exception of the TURD that is Hit the Plane Down, it's probably their most consistent album. Though I prefer the peaks of the three albums following it, and the sound is a bit too homogenous for a band that proved they could do so much more on Wowee Zowee.
Lastly, you get a Friggin' Cobbler for not bumping the appropriate Pavement thread.