well what kind of stove are you exacly looking for and what purpose?

What kind of fuels can I use?: depends on the stove
Can I mix fuels?: NO!!!
what spare parts should I get?:depends on the stove
What do I need to be careful about?: depends on the stove
What kinds of features are there?: Depends on the type.

Too many people in mine opinion are really over killing with there stove’s.

If you go on short trips only, on low altitudes, with the temperature well above freezing and fuel is available. Than a stove burning propane/butane mix is ideal. They are very easy to use and light weight.

If you go to places where fuel is harder to get, the temperature is lower, higher altitudes and your travelling for longer periods. Than a multifuel or gasoline stoves comes to its own. A build in cleaning needle is always a nice feature and it’s good to consider a silent or a roarer type of stove. One is silent (like the whisperlight) the roarer types sounds like a jet engine…

If you want to ultra simple, light, reliable, but a bit slower, go for the trangia style stoves.