Comparing the two is a bit like comparing Thomas Paine to Thomas Edison.
Stallman created a movement. A movement that largely predicted the ways technology and society interact. I think in 100 years people will still using the GPL. I can't say that about the iPod.
Anyone can write a text editor though. It's fairly simple.
It's beyond bizarre to compare the creation of a massive company, thousands of jobs, numerous earth shattering products which enhance the lives of millions, with a text editor a few programmers use.
IMHO Stallman has been a net negative on the computer industry, and will not be remembered fondly outside the emacs niche userbase.
Steve Jobs created a massive company. Thousands of jobs. He created products we all love and use.
Stallman just goes around ranting mad rants at people.