I like the XCR, multi-caliber, adjustable gas system, and monolithic upper.
But LWRC is basically an AR and can use almost all the AR accessories without issues.
POF is another "AR" piston option but I don't like the look of them and there is enough seizure reports to turn me off.
SCAR and Masada are other options we have not seen yet, but I think I'll pass on both of these for the LWRC.
The Colt above is late to the game, might turn out to be a decent weapon but will offer no more than what the LWRC does.
Right now I am set on LWRC because I just like the look and feel of them, and their commercials are pretty cool too, probably exagerated, but cool none the less