Hi guys. Need some help/suggestions. In Aug wife and I are travelling in CE to lisbon so will become bronze members and would like to keep our status for at least a year

before we lose it!
Since she has had a rough year i would like to treat the wife to an xmas break. Not sure where and since i want to try and achieve silver next year or be close to it what is the best use of my budget of around £2k - £2.5k to get the most TP's and cheer up the missus?!
We flew on J class tickest to NYC in April which we both loved but as my budget will undoubtedly just about get us 2 x W tickets whats the best route to get the cheapest chance of upgrading to CW tickets?
All help appreciated.
Thanks
Chiefwiggumpi