Pros of Russian:
- many many people here speak it, only today I met 3
- I can read it quite well already but not talk at all
- I could hike Bald and Bankrupt style through the russian speaking world
Cons:
- sadly, quite useless
Pros of Chinese:
- just thinking of learning it makes me wet because it interests me a lot
- I already know Kanji so it's probably a lot of points at Uni for a not too big amount of work
- likely to stay relevant unlike RU
Cons:
- subjective, but i think it sounds very ugly
- i probably won't be able to hit the tones because of the my inevitable accent and natives won't understand