It may just be the (in my opinion at least) bad typefaces Android ships with, but you're the first person I've heard say that Android's text rendering is as good as iOS's... Perhaps it's also that most of the Android devices I've used have had worse displays than my iPhone's as well, but I've not found Androids text to look that good...
Be sure to take a look again with a phone running Android 4.0 when those are more available: the new "Roboto" typeface is pretty good on more hi-res secreens, especially compared to the "Droid Sans" they were using before.
