If you thought the i7's split-headlight front end and call-an-orthodontist underbite rear were perhaps a bit too weird, you'll likely find comfort in the i5's vastly more traditional three-box shape.
Fancy, expensive processors are fun, but for most people who just want to build a decent middle-of-the-road PC for gaming (and anything else), the best advice is usually to buy a Core i5 or Ryzen 5 ...