1. No. Not on a regular basis. Once a year or so for a week is about it. Other than that, it's warm water for bass, bluegill, crappies, etc. There are some stocked lakes around here and I've tried it but it just isn't the same.
2. Moving water almost excusively. I've done a little lake fishing locally for stockers, but not very seriously and with no luck.
3. I think moving water is easiest because I feel that the fish have less time to examine the "meal". But then again, it may be my prejudice because that's been the majority of my trouting.
4. If I could, I'd fish moving water for trout every day, twice a day and three times on weekends. I can look at lakes and fish lakes any time I want and they really hold no great attraction for me anymore. Unless it's way up North...that would be something different!!!
"They say you forget your troubles on a trout stream, but that's not quite it. What happens is that you begin to see where your troubles fit into the grand scheme of things, and suddenly they're just not such a big deal anymore." - John Gierach