The concern I have with snap on regarding wrenches is that they don't offer a quick way of distinguishing between sae and metric.
Ratchets I will probably go with snap on and Wera zyklop
Hex key sets I have had good luck with my bondhus. They offer a good variety of styles I will be getting their stubby sets for sure. Never heard of pb Swiss. I have some snap on t handles, but they're not great they're just ok.
Hex bit sockets I wonder if snap on offers various styles like bondhus.
Regarding harbor freight, I feel that most their products are priced right, but again I'm looking to get the best tools available not the cheapest.
As a fellow industrial mechanic, what I do with my wrenches to differentiate them is use bright electrical tape. Since 90% of what I use is SAE in bigger sizes I have a very small selection of standard length SKs and some USA raised panel CM.
I do not like snap-on wrenches, I own a few, and never reach for them. If I had no budget i'd ask my boss to pick me up some SK, or Proto. I personally prefer SK due to the heft and thickness of the wrenches. Wright is also a good option. IF you do go SK, ask for the long patterns. Bit sockets, I use SK mostly, but also have some mixed in CMAN USA, Proto Challenger, and a couple Snappys. STAY very far away from the CMAN. The Snap ons and SKs have served me very well, as have the Challengers.
I agree with your choice on Bondhus t's they are what I use aswell. Eklind makes very good L and foldable sets though, something to remember.
Sockets: SK, Proto, Wright.