G-1 and C-1 last very long, maybe even longer than Tenergy, G-1 especially. Rakza 7 is up there too, so is Rakza Z. I find that Rakza X is not as grippy, it's more smooth, so it doesn't last as long but still fairly long. Vega's last at least as long as Rakza X, even though they're supposedly less "premium" rubbers, Pro, X and Japan last especially long, Europe a bit less so. I'm not as familiar with Omega VII's life span. I do think you can get 4 good months at 9-12 hours a week out of all the rubbers I've listed so far.
MX-P also lasts a fairly long time, but like all other European brands' ESN rubbers (Andro, Donic, Stiga), it looses its factory-tuned booster effect after a couple of weeks, so it feels different, not bad, but different. Rasanters don't seem to last that long though, in comparison, but I've heard that's been improved with R48. Joola, I'm not familiar with, Victas, not enough.
I play 8-10 hours per week, I seem to change my rubbers every 4-6 months, more often than not every 6 months. Tenergy, Fastarc and Rozena seem to last and keep their quality intact the longest. I have a friend in LA who uses Tenergy both sides and plays 10 hours per week, he changes his rubbers every month, it's a choice. I've bought his used rubbers before, they were in great shape, and I could play with them for another 4-6 months. I bet you could buy that NY guy's used MX-P's and play them for another 2 months at least.