Hi Petra,
A response to #2:
I am not an expert and I had until now 2 drafts, but I had the luck to always have exactly the players I expected (not 100% but still pretty good).
And I do check their stats. Of course it's also important how long they played in the match but in general I think you can read more in the stats than most of the guys here believe. If you need an excellent shooter right away I think it is not a good idea to go for a 1-13 shooter, just because he has high potential. On the other hand, if you look longterm you should concentrate on the potential to have the best results.