What to do, what to do..?

So, I'm faced with somewhat of a dilemma.  The girl I've been calling My Favorite Cocksucker (MFC) has been a regular for about three or four years now. She gives *great* head, and even with a rubber, can consistently get me off in a minimum amount of time, sometimes even faster than I can do myself, and the sound, sight and feeling are incredible. She hums, slurps, licks and squeezes, sucks and vibrates with her tongue. The only thing she can't do is go deep (and with me, "deep" is pretty easily accomplished).

But this weekend, I met her match. The new girl's technique isn't quite as polished, but her mouth is smooth as silk, her lips are soft as velvet, and she can go just as deep as my wife ever did, holding her breath like a pearl diver. Not only that, but she made me last freakin' thirty five minutes! She'd get me almost there, and then back off just far enough to let me subside, then start building again. She finally relented and let me cum, and if I hadn't been wearing my condom, it would all have gone straight down her throat, without her even tasting it. 

So the question is, do I call them "MFC1" and "MFC2", or take a clue from Coke and use "My New Favorite Cocksucker" and "My Classic Favorite Cocksucker"?

I just don't know what to do. Help me out of my quandary, fellow TUSCLers.