I am not a fan of three day splits as you are only hitting each body part 1 x a week (unless you do them twice in a week). Would you be able to do 4 workouts a week or is three the max?

Are you cutting, maintaining or bulking at the moment?

What are your goals?

Hey Sara, hope you don't mind if I offer my 2c in this one.

The psychological aspect of training does play a part. I'll admit I don't like training full body where each workout is the same and there is little variation, you do need to change up your program from time to time.

IMO, a big part of the decision should be based around where your lifts are at now, and how quickly you are seeing progress. If you are still at beginner/intermediate level then strength gains should still come fairly rapidly and more volume is generally advisable to provide as much stimulation as possible.

If you are a little further along the curve then perhaps you could look at something like 5/3/1 with bodybuilder accessory work. I personally tried this type of program too early and figured out I can still progress faster on a higher volume program - even while on a prolonged caloric deficit.

The middle of the road option would be a two day split so if you're training three days per week, you would be doing each workout 3 times over a fortnight. Some do this as an upper/lower or push/pull. Something like a 5X5 program with a decent amount of accessory work focused on hypertrophy could be an option. I'm a fan of combining strength and hypertrophy rather than focusing solely on one at a time.

I'm on something close to Jason Blaha's (Icecream fitness) beginners program. He calls it a beginner program but there is enough scope to tweak the program to suit your own goals. It is like a tweaked Stronglifts program with lots of accessory work. Close to a full body workout but different emphasis on workout A and workout B so not every workout is the same. This might be something to have a look at.