EAC, CDEx, MMJB are alright as well
In reverse order
If you just want something simple that'll give acceptable quality at 128kbits (maybe not so great at other higher/lower rates) you can do worse than music match jukebox ... best if you try hunting out the earlier versions somewhere though. i'm currently sticking to version 6 as 7 did nasty things to my pc

Simplistic operation, once you've set up a recording folder and a few basic options - insert CD, type in artist/title & tracks or have it find them through CDDB, hit record, have cup of tea, put CD back in box and enjoy fresh new mp3s!
CDEx (standing for... CDEx) should supposedly be as simple, i havent made much use of it yet though. Might do in future however, as it has built in support for the high quality, completely free LAME mp3 engine which i fancy switching to while i still have good enough ears to appreciate it. It's a whole lot slower (gets about 1.5 to 2x speed on my 1.6Ghz duron) and uses about 50% more bits on average (VBR mode) but the quality is *mwah* magnifique.
EAC (Exact Audio Copy) is an audiophiles tool more than anything, it does very precise "secure" rips of discs to correct for any dirt and scratches that might spoil the quality, whether obvious or just contributing to background noise. This is quite slow of course!
What it's more useful for, though, is getting the tricky "hidden" tracks off a disc - the sneaky ones that are hidden before track one, that you have to press play and then rewind to listen to on a regular stereo. EAC is the only one i've seen with the ability to extract them (and even then it's an unofficial, mostly manual process)