Which of the below card is best for long term GPU mining and what coins you suggest to mine with each of these cards.

MSI 11 GB   NVIDIA GTX 1080 Ti
ROI per nicehash : 9 months

MSI 8 GB GTX 1080
ROI per nicehash : 6 months

Gigabyte 4 GB RX 470
ROI per nicehash : 4 months

MSI 8 GB   RX 480
ROI per nicehash : 4 months