How long are you planning on living in Thailand?

The only benefit i see for ED is you can easily open a bank account. You need to extend it every year which can be annoying if you live in BKK as immigration line takes all day. You'll also need to get a re-entry permit to leave and come back.

DTV is multi entry and lasts for 5 years. Only downside is it's difficult to open a bank account unless you get an agent or visit many branches.

I was on an ED then switched to DTV. Apply once and done for 5 years, don't have to think much about extension paperwork etc. I travel frequently so won't be staying more than 180 days consecutively