My suggestion is the same presented here previously, but I use them for different things.
Both Rip and XLD are good rippers for Mac. They support AccurateRip and use MusicBrainz for metadata, so you get certified rips with good tags.
I always rip first to FLAC (single FLAC file + CUE) and them convert the rip into individual MP3 files. If I need to rerip, I go for the FLAC file, not the CD.
If I used XLD for both tasks, I would be constantly messing with the configuration, changing from FLAC to MP3, and every now and then would forget and rip to the wrong format. So, I use XLD for the initial rip and Max to convert the FLAC into MP3.
Later I learned about SBooth's Rip and started using it instead of XLD. Rip's advantage is that it adopts a smarter ripping strategy, only resorting to more powerful ripping technique when it finds a problem. So, initially Rip tries to fast rip a CD and match against AccurateRip, if it succeeds it is done otherwise it will try to overrip and else.
So, usually, Rip is a lot faster than XLD and will generate a good rip, but now and then it will rip nothing because the CD has a fatal flaw. For those, I use XLD, that will try a lot harder to make a Rip and produce a file even if it can't rip correctly.