As a scientist at heart, I love a graph. Thanks!
Back to the original question, I'm a STO player from open beta, lifetimer, and I haven't been back in the game (STO) significantly since SWTOR came out. I expect I will get back to STO once some of the novelty of TOR wears off.
Contrary to what others have said, the DOFF stuff (and other changes they made at the same time) in STO has actually put me off that game a bit. I had spent a good amount of time learning the game as I played, and felt a little like they changed the rules on me by adding all that. The duty officer system is similar to the crew skills part of TOR, which I'm still working on learning, but at least in TOR I'm learning the whole game as I go. Now suddenly STO, which used to be a comfortable place to while away some time, has become confusing and uncomfortable for me again.
(Before people shout about how I'm wrong, and duty officers are the best thing since sliced processing, I'm just talking about my own personal emotional response. It's not logical, and maybe when I get the hang of it I'll love the DOFF system. It just makes me a bit ... uneasy. Maybe it's the change from familiar to unfamiliar that's bothering me. I'm not sure.)
So that's me. Your mileage will (no doubt) vary.