I have watched videos and checked the links to people dens on here and noticed most have multiple brands of blades. However instead of making you choose just one i'll be nice and let you pick two. So if you could only pick two blades what would they be?

Personna "Labs"
Personna Reds

Right now it'd be Personna Red and Feather, even though Feather likes to bite me LOL

Any blades from any era?

DE:
vintage: Gillette's first stainless blades (early '60s, I think aka The Spoiler)
current: Big Ben.

SE:
Gem coated stainless.

I pretty much stick to Bic Chrome Platinum in my Merkur 41c, and Bolzano Superinox in my FaTip Piccolo.

Merkur Blades in my Merkur Long Handle / 23

Polsilver SI and Feather

Polsilver and Blue Astra

Bolzano and Astra SP

Personna Lab Blue
Feather

GEM by Personna
Personna Injector blades

If you had asked me when I was shaving with DEs the answer would be:
Personna Labs

Huge fan of Personna here.

Q-Ball and Gillette Platinum.
They both work perfectly for me in every razor I tried.

Gillette Silver Blues, and another Gillette Silver Blue.

A wakazashi and a katana. Then I'd wander the land in search of wrongs that needed to be righted.

Depends on the razor. For my ATT R1 & EJ Jagger DE89 I prefer Gillette Silver Blues. For the ATT H1 I prefer either Crystals or Personna Red. When I had the Weber I preferred Polsilver Super Iridium.

Gillette Platinum and Wilkinson's Sword.

Treets for the SE's and the Chinese made Schick blades for the injectors.

Polsilver Super Iridium
and
Polsilver Super Iridium

(then, maybe Feather, but they really have been displaced...)

Feather
and
Voksod

GBS and Astral Speech.

Astra SP and Feather.