Most likely these "super nodes" as you speak of will most likely be ran my mining pools as they usually have a huge amount of BTC and will allow them to collect fees even without having to find and solve blocks
"(Lightning fees are paid to peer-to-peer liquidity providers,
and not miners) Blockstream
Who are the liqudity providers? Exchanges.
This shows a motivation for Exchanges to use Liquid sidechains in partnership with Blockstream
as part of the overall solution to reap in profits using the lightning network.Some miners dont seem too happy about that decision, and thats why some decided to support the Bitcoin Cash network with their network power.Who benefits from the lightning network and who doesnt?
Who benefits: Blockstream, Exchanges, Users (kind of).
Who doesnt benefit:
Miners, Users (kind of)."
I'm guessing by mining pools you meant banks.

Anyone with liquid assets can run a lightning node and yes this does include miners and exchanges also normal users as well also less likely as they will be less connected
The best places will probably be payment processors like bitpay or maybe your wallet spv node or anywhere in between and the ability to open and close channels can be automatic and seamless inside your wallet software