Re: Warm analog chorus?
They are going to be similar, Zakk used a CE-5 chorus for years before he became a MXR endorsee, so they built him MXR pedals to be his sound. The CE-5 is an updated version of the CE-2, but the CE-2 is one of the "holy grail" choruses.
Basically, either one will do what you want, pick one and go for it and/or read the thread Aceman mentioned.