So looking at bikes these days I see the "alternate" option (at least it seems to me) is SRAM. Not as big as Shimano or Campagnolo, but their stuff Looks nice. Based on what I've seen also it is Shimano Compatible.
The question is, is that true, and also what is the equivalency here? Is it as good, better, than shimano? Do they have comparable model groups?
BTW I have no clue about this stuff so this is from about 4 months of experience looking at this stuff.