I'd say the best deal is the standard gold pass If you play enough games in the week. I treat it like a subscription and with like 8 months I made it to a hanger score of mid 4,000's using that pass and a few purchases for mechs and weapons.
Ten dollars for 1,000 A Coins and 700,000 credits. Plus the blue prints, skins, etc..
Now compare that to the 500 A coins (plus the avg 25,000 credits) deal you're buying now. The big difference is it's instant, but more made for a quick boost if you're impatient. The gold pass takes a month to cash out the stash, but sooooo fun to do.
The gold pass was a massive boost early on and now it's more for the skins late game. Or to level weapons I've been holding out on trying.
*edit note: stay away from event crates, they will eventually offer the same prize at lower star rating for 20-30 dollars later on. Don't take that bait. You'd have to win the item on like 2 or 3 tries to win that lottery.