Electric, I really don't mind having a manual one, I think those are actually better. and my electric toothbrush doesn't need to charge or have the batteries replaced, only have to change the head or else it'll start moving slower. when you change the head you can really feel the difference
the last electric toothbrush I owned played We Will Rock You by Queen whenever you brushed your teeth with it. Every boring manual toothbrush I've owned since then has been nothing more than a letdown
I enjoy electric but I usually stick to manual because there's a lot less maintenance involved concerning the brush itself and they're overall a lot more straightforward to use