Pretty sure it's "suki darake dayo".

Basically, "You're full of openings."

It's suki. Not 好き, which is the suki everyone is familiar with, and the one that you're talking about. Instead, it's 隙, the suki that's actually used quite a lot in anime but nobody notices.

And だいよ is weird. There's だい, よ, and だよ. But I've never heard anyone say だいよ. I'm sure there is a dialect that uses it that I'm not familiar with, but I don't think Minato speaks like that, and upon listening to it some more, I'm pretty sure it's just だよ.

And yes, Hokage Minato does say the same exact thing, as long as his standard causes a combo. If it doesn't combo, he won't say it.