I'm sure there are a lot of opinions out there. This is my short list of advise:
1) Start with the room. Make sure the room is well prepared including the appropriate acoustic treatments
2) Ensure that you have an idea of balance of the whole system (electronics, cables, etc). It should work as a system
3) Try before you buy....if you can
4) Trust your ears and go with the most musical sound regardless of specifications. Don't get sucked in with other opinions or hype.
1) Start with the room. Make sure the room is well prepared including the appropriate acoustic treatments
2) Ensure that you have an idea of balance of the whole system (electronics, cables, etc). It should work as a system
3) Try before you buy....if you can
4) Trust your ears and go with the most musical sound regardless of specifications. Don't get sucked in with other opinions or hype.