I'm also enjoying TRP at the moment, it has a lot of stuff in it which I find very interesting, and I'm looking foward to the next version to see what else is floating around in the teams' collective head for implementation. That said, there is also a fair amount of stuff I disagree with, and I like a lot of what the CORE team is getting ready.
HSR is, imo, not as complete a mod as either TRP or CORE - it's more a refinement of vanilla with a bunch of noew events.