Eben Moglen. He's also more "presentable" for all the folks that have leveled that criticism against RMS. I don't think age-wise they're that much different, but at least he's got a redundant backup.
I would be really surprised if he followed his advices 100% of the time, but they sure are a good start for getting you to think.
You're seriously asking yourself if a man who doesn't own a mobile phone or credit card is sneaking some CS:GO on the sly?
I doubt it.
David Kastrup has my vote for GNU project leader after rms.