I traded into an LCR a year or two ago and couldn't stand the trigger, it just didn't feel right to me. I stuck with my old 36 for a while, and just recently purchased a 442, which is fast becoming my daily carry gun. The LCR was never fired and went right back to the next gun show.
The Ruger also seemed bulkier to me. I know it's not, if anything, it may be a hair smaller, but I just couldn't warm up to it.
I would second everybody who has said that you should try your hardest to shoot, or at least extensively handle both. Both designs seem to be well proven and both have their adherents and detractors. Seems to come down to personal preference. In my case, it was Love the Smith and Hate the Ruger, but as you can see from the replies, there are plenty of folks who feel the opposite. Personal preferences, I guess.