I found the Sig226 a good one but a tad heavy for daily use, the Glock17 is my personal favourite when you have to carry one for a 12 hour shift, day after day.
My team had a required minimum of 100 rnds/month to be considered for duty, had to be signed off every week. You dont ever want to be thinking "shit if only I had....." when you actually need to hit something quick.