"Best" is extremely relative.
What style are you looking for?
The cheapest is just an extended standard latch - you can get them for $11.99 shipped on eBay.
More expensive options in several different styles exist.
For all intents and purposes, they're relatively simple parts, and any and all breakage I've heard of has been associated with the charging handle, not the latch - though I'm sure someone will be along shortly with a photo of a broken latch.
I prefer flat extended latches personally, versus the Badger type with the big, wide, vertical "pad."
My personal favorite is the PRI latch that's on their GasBuster charging handles, because it's low snag, but increases functionality. Nevertheless, it's an opinion thing as far as style of extended latch goes.
~Augee