I've used a few. To answer your questions:
1. Boiling water with Sterno-- I was finally able to boil water with this cool-burning fake napalm in a can. What I had to do was: put a lid on the pot, place the pot as close to the sterno as reasonably possible, and put a large windbreak cone/teepee of aluminum foil over the can and pot together. I left a small hole in the top for venting. This is the only way I've ever gotten Sterno to boil water.
2. What stoves do you use?--
Alcohol--I played with a brass Swedish alcohol stove. Heat control was a little iffy and the fuel was $10 (or so) a gallon. If you just want to boil water and don't have much money, this is the way to go. Ten bucks worth of alcohol and a 3 dollar stove will give you lots of affordable experience with cooking on a camping stove. I like this low-tech, super cheap option better than solid fuels, such as Esbit, hexamine, armysurplus stuff, & etc.
I don't think a non-adjustable alcohol stove will be good for simmering or frying pancakes, tho.
White Gas-- This is the good stuff. I started with a Coleman Mod 440 Dual Fuel Stove. I think of it as an updated WWII surplus stove. It has huge heat output, can also simmer, and RARELY catches fire

It fries pancakes, simmers soup, and boils quarts of water very nicely. On the other hand, you need tools to take it apart if the generator clogs. And the MTBE that Calif. has in its gas reportedly clogs stove and lantern generators. I think this is true.
My current backpacking stove is a multifuel MSR Dragonfly with the skimpy 11oz. fuel bottle. This sucker burns about anything flammable (except alcohol). I was more than happy running WalMart brand "Coleman Fuel" thru it, and never had a clog in the 5 (or so) gallons I've run thru it. Kero was a diff. story. That stuff was full of teeny particulate and "cr@p" that clogged all my stove's eency filters inside of half a gallon. So either filter suspect fuels, or just feed from clean cans of WallyM gas.
The 11oz. fuel bottle lasted me for over 3 days with tons of cooking at high altitudes early this summer (10,000 ft, behind Mt. Whitney). If you don't use a windscreen, tho, your fuel consumption will rise dramatically.
However, the Dragonfly uses a roarer burner, so it tends to have a loud, objectionable roar when you are heating water. And the concentrated little fireball of heat it makes is poor for pancake frying. No prob. boiling or simmering water, tho.
Whoosh, more than you wanted to know, I'm sure.
For good (but slightly dated) info on all aspects of backpacking/mountaineering, I recommend "Freedom of the Hills" written by The Mountaineers. This is a standard reference on the subject.
Good luck, and
Cheers