Square neckline pull over top - With a couple of extra inches on length so they did not ride up when gardening they fitted well. But the shoulders kept falling off. Or as my husband says I looked like I had one of Carole K's (Gardeners World) cardigan's!
Button through top - great fit except the neckline may plunge a little too much for gardening.
Yoke top - higher neckline, cap sleeves keep the top of the arms safely covered. But if you need to put on a cardigan the yoke puffs out the front uncomfortably. Also too short in the body.
I saw on Bobo Run's blog that she had found a pattern for bibbed overall's - now that is a pattern I would like to try for gardening!