Best ROM for stability

I've been running CM since about March this year, still have numerous glitches
Random reboots, lag, newest problem is a loud continious noise from the speaker that requires me to reboot the phone

Im considering a full wipe and reinstall of the latest version of CM12.1

Coming from a Nexus device, I hoped CM on my G3 would be 'stable' now, and pretty bug free, its still annying having to play with CPU governors etc. CM keeps getting changes, but I see very little change on my phone. I would rather efforts went into fixing these bugs than new features.

Can anyone recommend the any particular ROMs ? Dont want to go away from CM, but its driving me crazy now!

MOST STABILITY.. leave a comment

Hey all, I am setting up my grandparents (75 & 76 years old) with there first smart phones. I ran up on a dirt cheap i727 skyrocket and a i717 galaxy note. I want something 4.4 that EVERYTHING works on. Camera, text, calls, data.. . I just don't want something that will be rebooting randomly on them; also these 2 phone have the same chipset so I want to flash both with the same ROM so they can help each other figure **** out. Please leave a comment on what you recommend.
thanks in advance.