Just my opinion.
So, this time let's take a shot for the other team. Who do you think did the best job portraying God & Jesus on the big or little screen? While I realize (Holy Trinity and all) that most folks are big with the Jesus & God are the same entity...you gotta admit that not many actors can pull that kinda thing off. So, try and pick for each role.
Actually haven't seen a lot of Jesus onscreen that I can clearly recall, most of it's stuff I saw as a much smaller me; vaguely recall Jesus Christ Superstar but not enough to say anything about it and I mainly just remember I didn't like it much.
As to God, that's beyond easy. For the Oh God series (saw the 1st & 3rd) I'd say George Burns is possibly the best God I've ever seen. Add to that a dash of Alannis Morrisette from Dogma and that's the best I've seen for portraying the Big Guy.
I'd like to think that the actual Truth can be gleaned from a hybridization of the two.
So, who do you like for these roles?