I put a 46/34/24 crankset on my Tricross Sport because I wanted those ring sizes and they have worked out well.
At #185, though, and with a tendency to often get out of saddle to sprint, I've found that even after getting my chainline right and installing my Stronglight Impact crankset with a Shimano UN54 square taper bottom bracket per the instructions on bicycletutor.com, that it had developed a tendency to rub the chain on the front derailleur when I sprint out of saddle.
I actually have reinstalled the bottom bracket once and I've kept the crank bolts and chainring bolts tight.
As well, I had a Shimano Octalink triple which would would give me chain rub when I was out of saddle. Same thing, I removed/greased/reinstalled it and it was quiet for a few rides and then went back to chain rubbing.
Has any other 'heavy person' come to the conclusion that the old-style, cartridge bottom bracket-style crankset won't work for them?
Simply so as to get a stiffer crankset, e.g. an integrated spindle and outboard bb cups, I'm choosing between a Tiagra 50/39/30 or a Tiagra 50/34, with either a 12-26 or a 11-32 cassette. Yes, I've spent way too much time playing with Sheldon's gear calculator.
BTW, if anyone knows of a triple, 110 bcd cransket with an integrated spindle, outboard bb cups and will allow me to run a 45mm chainline, let me know. Or if there's a way to run one of the 50mm chainline MTB cranksets like the XT 48/36/26 crankset with my 130mm road hub, let me know.