Ok, disregarding Algernon Barclay or a Borg'd USS Voyager, I agree that the Enterprise is heavily favored. And is sexier.
So the question is, could Voyager sufficiently gimp Enterprise in the opening exchanges, while avoiding destruction herself? I dont't have much data, but all things being Star Trek, probably yes. Not likely, but possible. If Voyager could disable Enterprise shields and sensors, somehow before getting slagged, she might be able to torpedo the Enterprise while she fires blind. Really depends on if Worf is on his shit that day. If its a timewarp situation, and its Voyager vs. early TNG Worf, he's going to miss.