What about power consumption issues? If you load up Windows on a Mac laptop the battery drain rate is doubled. That's a pretty big user experience issue IMHO.
What matters (and I think this has always been true) are the applications. When friends ask for my opinion on what they should get, I almost always recommend buying from Apple (gamers probably want Windows). The two big reasons are (1) they can (legally) run more software than anything else and (2) you can walk into a store for support that's actually pretty good.