Originally Posted by gusd

I definitely prefer the A seats on the ERJ vs the CRJ or ATR. I haven't flown the Q300. The seat in the ERJ is much more comfortable than the other two, well, even more comfortable that the seat in the 737s, which are so hard. Since there is nobody to share the armrests with, the A seat in the ERJ doesn't feel as cramped as on the CRJ or ATR. I think the windows are better, as well.

For sear dimensions and such, you can find that for all planes by clicking on the links on this page on united.com: