OP, every comment you add raises more questions:

"Both of us are platinum of Marriott and never been Hilton, just matched Hilton at Apr and July 2017."

So if you status matched in April and did not like Hilton, why do it again in July and keep staying at Hilton properties and buy Honors point when you are Diamond Marriott?
Just stay with Marriott (unless they closed your account...)