Solipsist

Honestly, right now MangaRock has the 1 feature I wanted -- which is "What is recently popular!?" , so I am going to take a closer look at it than MangaDex.
That being said, since I at least know that Dex was just established, I can expect some features to be added. Like "recently popular in the last 6 hours", thumbnail previews and actually having comments enabled, which is something that mangaRock is also missing right now.

Time will tell, eh.

To be honest, one of the things that I enjoyed about Batoto was the "Currently popular" tab. It introduced new stuff to read.
Other websites, however, only have things like "Latest updates" or "all-time popular", which doesn't help at all. Being a direct host for multiple scanalation groups also helps out.

I do wonder if someone is going to bring up a new website with the same idea in mind, since checking each individual scanalation groups' website is just not realistic.
EDIT: MangaDex.com seems to be a top contender in that regard.

H'yup. The list is still empty for me as well.