600F is typical for me, but I may go lower or higher depending on what I'm soldering. For larger pads or wires, I may go up to 650F. Some things need a lot of heat and those I may go as high as 750F. It also depends on the solder. 63/37 doesn't need quite as much heat as 60/40.
As far as analog or digital, an analog station will do the job just fine. It's a nice feature to be able to set the temperature with a digital readout as opposed to markings on a dial, but its not something that's going make a big difference in how well the unit solders. The Hakko ones are pretty much all digital now anyway. Those seem to have the best value, best quality for the price. You can find no-name analog units for a lot less, but the quality doesn't compare.
My feeling is that a soldering station is not something you want to cheap out on. There are some things where you can get away with that, but when it comes to tools, I never cheap out on those. I look for stuff that's inexpensive, but not at the sake of quality. There's nothing worse than when you're in the middle of a big project and your tools fall down on the job.
LiPos are the only cell types designed to be soldered. It's possible to solder the round cells, but it's very tricky. Makers always strongly advise against it in the data sheets. The round cels are not designed to be soldered and can be easily damaged by the heat.
