Well, GP32emu does sometimes put news up faster. In the past few days, though, hando's taken over somewhat.
GP32emu has a nice design, although it's really annoying how when you click on a link in the sidebar, the sidebar doesn't show up on the page you come to and you have to keep on clicking "back" to go to the main page.
My personal preference is actually for the previous design that GP32Xtreme had (the grey, metallic one); I think this one doesn't look very good on an 800x600 resolution...
The boards on GP32emu are far too strict and unfriendly... so I guess I'll pick GP32X just because of that.
GP32News is good for their connections with Gamepark; every so often they'll put up a very interesting interview with Gamepark. Also, they're more connected to the whole francophone gamer scene, so occasionaly they'll have an update that the other two sites missed. They don't update quite as frequently, however, and I'm always confused by how they sometimes have "sticky news" that won't leave the top of the page; it frequently makes me miss the "new" news that are further down.