You may have some things confused, you can’t EA any ivy, you can only SCEA HYP (or Stanford) or ED the other ivies (or CMU or Harvey Mudd). And you can EA Georgia Tech regardless of whatever option you choose so you don’t really need that third option. Texas and Berkeley don’t have any early programs so just apply RD. If you really like Penn, apply there ED, it’s STEM programs are very good, not sure where you get the impression it’s not. For an Asian female STEM from TX, Stanford will be the toughest school, that’s a very very competitive demographic, it will be lottery-esque in terms of chances. I’m not sure I’d “waste” SCEA there. So to sum, ED Penn, EA to GT, apply RD elsewhere. Good luck!