I'm currently learning Spanish, but in a few months I'm thinking of starting a new language, and I can't decide between Polish, Turkish or Albanian. I find both languages interesting, yet which one would be a bit easier to learn, if only by a small margin. I find Albanian absolutely facinating, it's Indo-European, yet looks like no other language I've ever seen, it looks really weird.

I feel all 3 of these languages would be worthwhile as all 3 are quickly emerging economies.
No, I'm White British.