Blur riders - is the Blur 3 still a good bike?

I need a new full-sus xc bike - the choice is a Blur 4 (C frame S model) or a Blur 3 (CC frame XO), both roughly at the same price point. Ideally, I think, I'd like a Blur 4 with the CC frame and XO, and preferably with Reserve wheels, but ... that's the choice I have. There are, of course, other options, the Scott Spark and the Specialised Epic, but in terms of availability and brand preference it's a choice between the two blurs. I'm a bit spoilt, I already have a Tallboy 4 (140mm fork) for trail biking, and a Highball 2 for xc, and a Stigmata for cx and light gravel, but I want a light xc bike for my regular xc riding - the Highball is harsh and I'm using it mainly for bike packing. So, my preference in terms of specifications is the Blur 3 - better composite frame and everything else up a level, or the 4 - in theory lighter but with only a C frame and everything else not so good. Any thoughts?