My favorite Dwarf Angel would be the Eibli. I too have a smaller tank, and eventually (when my tank matures) am considering a dwarf angel. I'd really like an Eibli, but I also want what's best for the fish and might go with a Flame Angel. They stay small, and I have heard they do fairly well in smaller tanks.
I have two favorites but my most favorite is the flame angel mostly because of the color and because its one of the most hardiest of angels, and most the time it is reef safe and does not harm inverts. My second choice would be the coral beauty because again for the color.
golden dwarf.. i saw that fish at my LFS and it was gorgeous.. it was going for like $150....
ne-wayz, my favorites would be flame and coral beauty.. as you can see by the signature....