He for sure is a real gem, a superb player to watch, so much talented, BUT he has just extended his contract with Zenit for 3 more years, so its gonna cost big big money to get him..
As for podolski and silva they were not at all convincing to me, especially at the price that will be needed to get them.
as for Villa i'll prefer to wait and see when the transfer season really gets opened, rather than believing on all kind of rumors or newspaper misunderstandings...