Always the favorite is the classic red and gold armor.
It all started with the Mark I armor which although looks quite rough was functionally really cool. Great for BBQs !
With a little bit of refinement though still short on the colors, the Mark II became more sleek
With the Mark III adding more color to the armor and cool gadgets and functionality
Hypervelocity armor gave a more cyber look to the armor
And the Power Assault armor provided more heavy duty action
For more specialized missions into the ocean, the Deep Dive armor is recommended
and for those missions where it is better not to be seen, the Stealth armor is an absolute must.