I can't seem to stick with any particular set of rules for very long. The current campaign started out with OD&D, got house ruled, and eventually sidelined for a heavily modified Holmes, which I named Holmes YX. Now I've gone and switched to Swords & Wizardry Core Rules. There are a lot of reasons behind this move. Publicly, I'll just say that now there's a vehicle for making available some of those YX rules I spent so much time developing.
I've also been doing a fair amount of work designing a new pantheon of deities for an update to the Yezmyr campaign. I'm quite pleased with the results thus far, and that really gives me pause, I had dropped clerics from play earlier in the year. Now I am reconsidering that move. Primarily, there is the fact that three of my players really run with the strange gods I tend to create. Why should I take that away from them. Moreover, S&W Core supports clerics and I really want to keep my S&W Core support full and clean.