I've enjoyed Hema's in the past as well, but always try to go during the week or really early. Otherwise it's packed.
Tried Udupi Palace for the first time about a year ago and had a very positive experience. Can't for my life remember exactly what we ate, but I'm guessing there was some dosai and a paneer dish in there. If you're looking for meat this isn't the right place, though; it's southern Indian, vegetarian.
Had no idea until I googled it, but apparently they have a Takoma Park, MD location as well!
Udupi Palace
2543 W. Devon Avenue
773-338-2152
http://www.udupipalace.com/