Most thorough DNA test for a woman

There's a lot of discussion on the merits of various DNA tests here, and I'm not knowledgeable enough to sort through and make sense of it all. So, I'm appealing for a simple answer - if that's possible.

Irrespective of cost, which test is, in everyone's opinion, the most thorough/definitive/comprehensive test available for a woman? My abuelita is 95 and I want to grab this while I can.

Thanks all!

Annette