I personally used Teurmo's 17 yrs and recently switch to B-Ds for first time. I like B-Ds because they have a bigger flange to grip for fat fingers and injection seem to go in smother without sticking.
The B-Ds also hold 4 cc's easily so you can overdraw. Most all hospitals I seen use only Becker Dickinson's B-Ds if it makes a difference.
You can see the bigger plunger on B-D's for hard to reach on-sites and they are longer but also seem sturdier for some reason.
you can see the flange on the B-Ds is about twice as big.
the top ones are a Teurmo's bottom is B-D.
both 3 cc syringe's