I'm a noob when it comes to mining.

What counts as a node in this situation where the software a node runs gets a vote in the big blocks/little blocks argument?

For the big blocks argument is a node a pool or is each miner connected to a pool counted as a node?

When I look at blockchain.info it's mostly the pools that show up as solving blocks, not the individual miners. Here's what it shows for the last few blocks.

F2Pool   
AntPool   
AntPool   
Eligius   
121.43.197.95