You can usually buy 2 tickets per gold membership anyway, so unless you want the loyalty points you should only need 1 membership between you.

If you want 2 memberships, then I’d recommend both getting gold because tickets go on sale to gold members 72hrs before they do silver members so you’ll both be able to buy at the same time and before the silver members so you’ll have a better choice of seats.

When you add tickets to your basket you can assign them to friends/family which you can link together in your account settings.

Hope this helps.