We don't know how many albums suga would sold, mixtapes are free. "Bigger", okay but "Way bigger" is exaggeration.
As for views; I'm a suga stan and don't care for views, fanscams, polls or similar. Jhope has the least views on fancams but he's the most followed korean artist on spotify. Youtube views and followers don't prove anything, paid online concerts showed that.
I voted for lisa because she do lots of solo promos and modeling, people may know her without knowing she's grom a group. Suga doesn't do solo promos (photoshoots and music) and only performs with bts. But this was a tough one
Eta: no idea for the rest
blackpink is a group of 4 immensely talented soloists put together