Adb does not show any device when "adb devices" and yes, usb debugging on, devoce aknowledged to the PC, though fastboot finds the device, ADB is unable, I am going to try under linux. Is ADB necesary to succeed flashing?ADB? you need to switch on USB debug on DEV settings and acknowledge the phone to the computer.
Best ROM? Always stay up to date with EU DEV weekly and forget all Stable.
No need to flash every weekly release. Only when big update in the log or some new feature (sometime also bug correction!)
Voilà.