SAFD: Right now my go-to is the Brooks Ghost 13, I have four pairs (I think) and usually get at least 400 miles on them. I'm definitely past 400 on one, probably 100-200 miles in two, and 200-300 miles in the third. I'll be sad when I'm done with the 13s as I do love them, I didn't like the 12s much. I didn't like the 14s when I tried them on, but I tried on the 15s last week and I think they should be good, I need to order a pair. I do think I'm going to go up a half size officially, to avoid losing my little toenails this training cycle!
I also have a pair of Saucony Endorphin Speed 2s that I enjoy on speed days, they don't have enough support for longer runs for me. I'm eying the Speed 3s since I hear they are more in between cushion/speed but the price tag is a bit much right now.
I'd like to try out New Balance at some point, but I don't have any complaints about my Ghosts, so we'll see.
I keep eyeing Hokas but I know most people don't get much milage out of them and they're too expensive for me to not get at least 300 miles out of them.