Nice concept. My wife realy liked these. In all, I think the V is over emphasised. One reason for the V or VV was to create a unique wordmark for the logo. The other reason to use a V is to distinguish our two wines the Q & V. If I was going to use one of the V styles you came up with to signify or V wine, I would choose one with grape leaves (though to be a stickler I would probably ask that they be Cabernet Sauvigon leaves just in case anyone knows the difference. Yours is a merlot). see
http://www-plb.ucdavis.edu/labs/rost/virtual%20grape%20dreamweaver/Leaves%20Shapes%20.htm #70G - the two lines of the name are too close together and it doesn't work as well having them the same size.
#76 - Like the font, like the coloring, like the soze differences in the name.
#79 - Like the font, I also thing the size diff is nicely balanced though the Vineyards does get a little over powered.
#80 - Like the coloring, and the two coloured name. Again the vineyards seems to get a little overpowered.
#83 - It pops a bit more on a black background. Vineyards seems more readable.
Lastly, this is all going to be on a wine label approximately 93mm by 110mm.