Agree with @A1aGypsy . They are both pretty different designs so it’s a bit hard to tell which would be “better”.
Try to take a look at your current wardrobe and what style of jewelry you usually reach for.
And of course, if you can, try both on in-store!
I chose the Tiffany T earrings and the X ring because I just thought the minimalist look would go with more things and be worn more often. I also personally prefer simple and clean lines.
But those are my opinions haha, you have to make sure they work with your look and how you feel when you wear them!