I guess having had an experiance of both, here's my recommendation.
Live Ins. Any day. Every day. Marriages don't give you shit. Not unless you are a traditional woman, willing to pay the traditional prices for the traditional safeguards.
If you're looking for parity, wtf avoid marriages anyway. Why is the tokenism needed for the man you love anyway?
Of course one only realises things in hindsight.Too late then.