Tough decision, especially when it is very difficult these days to see the display (in working condition setup with a PC connection) directly in a store.
Beware you might not like the 160 degree view angle on LCD's, even 170 degree. This is what I found to be the issue with LCD's .... some out there might work just fine and view ok from wider angles, but since manufacturers do not use standard view angles in their specs, you might buy something online and get it home and not like it.
In my case, I decided to drive with a full 1080p HDTV 32" Sony Bravia. Great on the angles, refresh rates (even at 60hz) is just fine for Mame and other game play, including XBOX and other systems.
My recommendation is to use HDTV.
This is certainly an interesting topic with many different opinions for sure.
Good luck in the decision.
David