2 huge problems with that
1- Spamming bash is a gameplay mechanic that only us players can abuse, npcs don't do that. They bash once or twice but they don't exploit it.
2- If we use the game as a basis the orcs would definitely destroy the Alik'r. Kematu is the ONLY Redguard in the game that knows magic while each orc stronghold has a mage and a blacksmith to make sure their warriors are properly geared and have potions. Plus redguards are as bad as magic as orcs are, 1 of them using 1 paralyze spells hardly means the whole race knows how to paralyze.
And you people are pretending like the Orcs are idiots who can just swing their big hammers like crazy people. Orcs are the fiercest warriors in all Tamriel, like someone already said it took a huge alliance to take them down.
I'd have to vote red guards IF the right conditions are met...
Lets say it is night the red guards would have a greater chance to hide in the shadows and as i'm currently looking at orcish armor on a character. by first glance I can spot less armored locations that a sharpened scimitar would easily be able to cut. lets also include ONE having the unique weapon windshear (which is a redguard weapon) they would probably be able to keep an orc staggered. Adrenaline rush would allow for near infinite running which would allow the redguards to quickly out run the orcs and be able to preposition. Now if it was day no doubt but the redguards would be screwed. But that is my thoughts.