What I need/would appreciate:
- As many segments as possible in one ticket (e.g. 8 segments with LX).
- Spend few miles for European awards.
- Get full amount of miles also for discounted tickets.
- Be allowed to do loop ways (e.g. WAW-ZRH-TXL instead of WAW-TXL).
- Get free upgrades as a status member.
- My miles must not expire as a status member.
- Relatively easy to become a gold member (prefer each year 50k instead of one year with 100k).
- Priority check-in.
- Lounge access also when travelling in economy.
- Lounge access for me and one guest, also when not travelling "my" airline.

With StarAlliance one collects status miles with each StarAirline, doesn't one?

Did I forget something important?