What
@Dakis said.
For me, Featured Threads does everything that I ever did with XenPorta and then more (such as the Featured Threads blocks on forum pages, which is the main reason I bought it - the home page is a 'bonus' that Brogan added afterwards).
There are a few things that Featured Threads won't do that XenPorta does, such as have an article layout (I never used it, I didn't like it). However, one huge benefit to Featured Threads over XenPorta is that is actively developed by Brogan and his support is outstanding.