Just like JacobP post above I think AA will be no longer the ideal program for me because of their upcoming changes. I'm looking for some advice on what program would be right for me.

Questions
For members asking for information, to help people to assist you, can you please provide:
(1) What is most important to you in a FFP?
In order of importance: 1. Redemptions for award travel or upgrades, 2. (status that comes with actual benefits like lounge access)

(2) How many miles do you usually fly each year & in what class? How many flights/sectors?
+/- 25K miles
Usually I either just reach or miss the 25K benchmark for Gold status with AA. Class of travel is mostly Economy or Premium economy. Going forward I suppose class of travel will more often become premium economy.
Segments: 8-10. (of which 4 at least long-haul)

(3) What types of fares do you usually buy?
Cheapest economy and as stated above towards the future probably more premium economy.

(4) Can you choose your airlines and/or class of service? Do you travel for work and/or pleasure?
Yes I can as most travel is leisure.

(5) Which routes and airlines do you fly most often?
Varies heavily and depends on the holiday destination.

(6) What is your home airport?
BRU is closest significant airport.
I often opt for AMS and DUS as well.

(7) Do you have FFP status of any kind in OW or other airline? What is it? Do you have any miles banked in a FFP?
AA PLT through challenge. Most miles in this account. (82K)
BA Executive club (no status, little miles). I use these for shorthaul rewards currently.
IB (no status, miles via groupon promo a few months ago 70K)
I can transfer miles to BA/IB from AmEx membership rewards.

The main reason I was loyal to AA were the challenges that offered access to status. The benefits most important to me as PLT member were 100% bonus redeemable miles and lounge access. Secondly I was loyal as the Aadvantage program used to offer:
- 100% redeemable miles of the actual flown distance on all fare classes when travelling AA (not anymore in the future with the changes coming)
- 100% redeemable miles of the actual flown distance on all fare classes when travelling BA (has already changed a while ago and is now 25% in deep-discount economy)
- 100% redeemable miles of the actual flown distance on all fare classes when travelling FY (this is still the case and FY is a good carrier for Asia routes)

(8) Preferred Airlines? Most common Airlines flown on?
Currently I most often fly BA,AA,FY,IB. Not necessarily in that order, all depends on holiday plans.
Some travel on SN as well for short-haul flight. Miles for travel on SN are collected in UA MileagePlus account.

Current year 21K EQM miles in AA.
Upcoming flights this year is a long-haul to Africa. (most probably on BA)
Start of next year a long-haul to S-America (could be on either BA or IB)

I look forward to your opinions.