I think you need to start with your priority: portable vs mobile.
For Portable, the DeWALT is top-rated:
link
Ryobi is a good value
For Mobile, there are more good choices:
Rigid as mentioned
Bosch zero gravity
Delta/PC
HTC PM7000
I had the DeWALT, but I'm simply moving around my SCMS in the garage, so it wasn't the right stand. I bought the Delta (now PC), and it's ok. easy up/down, but the extentions(sp?) are terrible and poorly designed. I wouldn't recommend it for this reason alone. If I had to do over again, i'd look at the Bosch (big $), Rigid, or HTC.
- Brad