I would highly recommend a SEGA Megalo 410 cab if you can find one in your area.
I've had my Megalo for about 2-3 yrs now and GGX v1.5 for Atomiswave since last year. I mainly got the AW in anticipation of future possible SNK titles, plus I'm not a big GGX fan so I didn't play the game much or tinker w/ the AW board.
With all the talk about AW recently, I decided to check if I was running it in high-res. For a while I assumed it was because the picture looked pretty sharp as-is. However, I finally got off my lazy ass, whipped out the AW manuals then checked the board. Sure enough it wasn't in high-res. So I flipped the switch, powered up the cab and wow!!! The difference in quality was like night and day. I've never seen a game look so good in my megalo.
Most other jamma games looked kinda "washed out" on it. I just wrote it off as a shortcoming of a projection based monitor. However now the picture quality rivals that of a CRT.
Beyond that the SEGA megalo has tons of features. I seem to find new things about it all the time. It also has built-in vga input jacks, support for multiple freq/resolutions, can't forget the huge 41" screen(!!), etc. Also, it even has a remote control for it! In addition, this thing is much easier to move than even a standard candy style cab. The wheels allow for effortless push and turning.