i feel 280x the cards Claymore loves the most - will have 200 sols per card i nthe update 
)
)I like 390-390X the most - I'm going to reach 300H/s on stock clocks.
RX480 will show about 190-200 I think.
280X - about 200 or a bit more.
Yes, but too wide memory bus, 4096bit is too much for most PoW algos and therefore cannot be used completely.
Nano will show about 250H/s, may be I will reach a bit more.