As Jerome said, this is impossible to have a genereal answer, as JLC has a wider spectrum of watches than VC, but that doesn't mean that JLC is better than VC...Although I think that on certain watches, VC is better, and no on others...
I'm a lot attracted by VC, but for the moment, I own JLC watches...
I'm waiting for MY VC, a watch that drives me crazy, and there may be one, the VC Malte Chrono Perpetual Calendar in platinum, a LE of 50 pieces...This is a gorgeous one!
I think JLC is more innovative than VC, as UN is, also...
So, there are a lot of watches to get, to be very appealing in all these brands...Saying that it's better to get this one more than this one is not very smart, I think, as it is also a matter of taste, and this is very subjective.
I would also know on what criteria your AD says that...IMHO, it would be very interesting to know.
So, I will end my answer by saying that I'm in love with some JLC watches, I have a lot of respect for them, but I also consider getting 2 or 3 VC pieces.
Best.
Nicolas