15" rMBP. Got it in March 2015 and it's been rock-solid for over 2 years now (my previous Macbook lasted 4+ years before having a sporadic boot problem that probably could've been fixed if I wasn't ready to replace it anyway). Fast, stable, excellent build quality, no complaints. I was a little disappointed in the touchbar MBP but it would still be an easy choice for me if I had to get a new machine.