IMO, groundfighting is a crucial skill a lot of martial artists like to gloss over as fast as they can. I think no one marrtial art is "the best base." Wrestling's obvious flaw is it only works in one-on-one encounters unless you're beating on a couple of complete losers.

That black belt holds my gi closed. Every martial art has something to offer. The trick is to find the right balance of arts that compliment one another and cover each other's weaknesses.

__________________
“The only thing necessary for the triumph of evil is for good men to do nothing” - Edmund Burke

So in the Libyan fable it is told
That once an eagle, stricken with a dart,
Said, when he saw the fashion of the shaft,
“With our own feathers, not by others’ hands,
Are we now smitten.” Æschylus