I picked up a 14" JVC (TM-H140PN) earlier this year and am really smitten with it.
I wouldn’t go for a composite-only model because it might really limit your options when it comes to certain systems. I’m happy using composite with my NTSC-J N64, PC Engine and Super Famicom, but the output is terrible on my PAL N64, Saturn, Xbox 360 and PS2 Slim and always use S-Video where possible there (including TV out on my PSP). Seek out a system that also does S-Video if you can.
Does it have a comb filter as well? I’m still blown away by how good the composite output can be on my JVC:
On PC Engine it also completely eliminates any weird pixel crawling while still offering the benefits of composite blending that many PCE games were designed for.