I dont get why the 35 is partof the holy trinity
I think the 24 make more sense
Agreed, but the original 24 wasn't great and the 24 / 24 II don't have the matching 72mm filter thread. I have the 24 f/1.4 II, 50 f/1.2, and 135 f/2 and love that combo - it's my unholy trinity I suppose, but I don't find the 35 wide enough for my style, find the 50 amazing on my 5DII for all kinds of stuff including small group, 3/4 and full length portraits, and I prefer the 135 over the 85 length for head shots or more distant 3/4 shots. The 24 rocks for environmental and group portraits and doubles as a killer landscape lens.
If I were you (The OP), I'd give the 24mm some thought as well as it's around a 38mm on your crop lens and I really like it on my 60D as my psuedo-35 when I use it there, and the current price is way less than I paid. I personally never liked the 50 on my crop sensor. It was awkward and was always too short or too long, but never the right focal length.
It's all about what you shoot, though, and there is no perfect set of lenses, just a perfect set for you
, but it takes time to find out what you like.