Choosing a new guitar, especially when moving a different style than what's familiar, is a bit of an adventure .. but very enjoyable. Apart from esthetics and such, the fundamental difference in hollow bodies is whether or not they have a center block under the bridge. A block will give you more sustain, but noticeably lessens the depth and warmth of the full hollow body. Center-block designs also tend to have shallower bodies, which also affects the tone.
I looked up the local price of your Epiphone Riviera Custom P93, and there a few others in that price range that might be worth considering:
1) Gretsch Streamliner series (w/ Bigsby) have both a semi-hollow and full-hollow in this price range (luscious sounding pickups)
2) Ibanez Artcore Expressionist or AF-series (nice slim neck, which wasn't suitable for my large hands)
3) Godin 5th Avenue series (full-hollow, best for jazz)
When I compared what you're considering and these others, the Gretsch full-hollow suited my taste best (sound, feel, etc.). But that's entirely personal, and any of the ones you're looking at would be excellent value for the money. I fully agree with Doug that one can't go wrong with an Epiphone ... very well made.
Good one, EB ... love your humorous twist at the end. I'm a non-drinker, so does that make me even scarier?
