I'd fly on the E-jets over all the planes you mentioned any time.
Roomy interior, comfy seats (size-wise), I prefer the 2-2 config over 3-3 (window seat and only one person sitting next to you!!!), you don't have to dislocated your neck like you do on the CRJs if you have the window seat (i.e., the wall is pretty straight and doesn't curve towards your head), nice big windows, and overhead bins that can actually handle most carry-ons (so you don't have to gate-check them like on the CRJs).
I only have two complaints: (a) the windows are spaced quite far apart, so sometimes it's a pain looking outside and taking pictures, and (b) since they are smaller than the B737s/A320s they don't handle turbulance as well.
But, overall, I personally love them!
Nikon: we don't want more pixels, we want better pixels.