I really think I have it narrowed down between:
-Daniel Defense (either M4A1 carbine gas 14.5" or M4 RIS III 16" midlength gas)
-LMT MRP (would prefer the full length rail version but that's unobtanium and I found a good deal on the regular MRP)
If I had the money on hand I would simply get both, and I just might end up with both. In which case I'd have to decide which to get first. Right now there's the regular Mlok MRP (with exposed pinned gas block) available on sale. But I like the looks of the DD better.