If I understand correctly, better 1 large.
Previously, some farmers made such tricks: they created a lot of small knots (on the same ip with different payment addresses) and each received a basic payment - this is fraud. Then the developers began to check, and if they found that there is more than one payment address on one ip - then payment came only for 1 node / address, the rest were not paid.

2 TB - this is not a big node))))
At me 3 Tb and earlier I received 3-6 coins a month. This is very small.
Although this is because my driver is only filled with 0.5% (1.5GB), only the space is paid, I understand.
But as a matter of fact the drive works in vain, for a month nothing new is downloaded.

I read, one guy from Russia hooked up a very very many drives (100 pieces seems, I do not remember), and he also did not download anything. He was shocked.
(If necessary, I'll find a link and I'll give it here).

he writes that he has 100 disks of 3 TB
https://vk.com/storjproject?z=photo-77635071_456239260%2Fwall-77635071_1106

It remains to ask yourself, to whom developers make huge payments
https://docs.google.com/spreadsheets/d/1cCtaEiLeQhPkRGoq-_egR_AoM4pwmxkShJHhhmlINI8/edit#gid=0