ORIGINAL: frenchie79
This begs the question of "what makes it a top choice" is it:
1. Mount ability with minimal modification.
2. power
3. weight
4. carb & exhaust location
5. Mag or EI
6. parts available
With my limited experiance so far and based on trimmers only.
#1 Stihl brand
#2 Echo (Koritz)/ Jonsered-tie
#3 Homelite
#4 Mac
#5 Ryobi
#6 Poland
I based these on Quality,Mount ability, Weight, Power
Red Max is a very good engine also. May be in tie for #2 on list