Husqvarna now has electric as does Stihl, not sure about Echo. Husky just had a demo day here at the local lumber yard and they were chopping up Maple, Pine and such with their Electric saw and no problem with 18" dia Maple.
DeWalt also has their family of electric tools and that now includes E-Chain Saws which can use the FlexVolt batteries (up to 120V).
I have a Husky 576XP for my cutting work but it is a beast ! and been looking at the new DeWalt for the lighter stuff. All my cordless tools are DeWalt and never had any issues at all, so that's a reference for me. I have no doubt that Husky, Stihl etc would also make sure their products do what they are intended to do.
I myself would stick with DeWalt simply because it's one platform and I can use the batteries across the family of tools. That might be a consideration for you as well... if you already have an investment in a "family" of cordless, it would be prudent to stick with the family if you can.