I have visited a few more since my last post. To your specific question, I would still suggest you make appointments at Lewis and William Chris. If you like Tempranillo, Lewis is hard to beat in my opinion. I visited there this weekend, and the tasting menu is heavy on Temps and very light on whites. IIRC, they are going to be releasing a rousanne and viognier here in a few weeks, but they only have two whites available now and only one on the tasting menu. But still, I really enjoy their atmosphere and the people that are there. They like to explain the wine and will answer any question you have. So if you want to try some great Temps, check them out. It may be a members only wine but ask if they have a bottle of the Round Mountain open for you to taste.
Also, William Chris. They are really just one the best I have found out that way. There was only one of their wines on the tasting menu I did not like (I think it was the Hunter blend). What is odd is the guy serving us admitted they picked the grapes too soon. I was surprised they owned it. Maybe they think it will calm down in the bottle. But they also try new things with unique varietals for their area, like carignan, which makes it a fun experience. Their property is nice as well.
Becker- I took my mom here a few weeks ago for her birthday. She likes sweeter wines so I figured Becker or Messina Hoff would be our best bet to find something she would enjoy. I usually have a hard time finding Becker wines I like, but I appreciate their variety. If you have a large group or some folks that aren't big wine fans, I would suggest Becker. They have at least one of something that everyone will like to some extent. Plus, they have a great setting that we really enjoyed. It was crowded when we went but the property handles it well.
Pedernales Cellars- I visited here last weekend. It was the first time I had been there in a while. Still the best view out of all of the wineries and they have a few good wines. Their viognier always pleases and they had a good red blend named ValHalle, But, I didn't enjoy much else about the experience. Granted, my friends and I had already visited two wineries and it was near the end of a quiet Sunday, but I felt like they couldn't give two sheets about serving us. We were served by a nice guy, but I think he was 16. I asked him a question about their well known "GSM" wine and he really didn't even know the grapes that made it up. I am no wine expert but even I know the wine got its name from the grapes that went into it. Its your wine, don't put someone behind the bar that can't speak to it.
And it wasn't just us. Another couple who walked in after us stopped their tasting about halfway through it and complained about the apathetic service. They left. We were undaunted however and took a bottle outside to enjoy the sunset. Also, I think they are trying to position themselves to be a higher end winery with the way they have broken up the menu and the tasting room, and it doesn't work for me. Don't put table clothes on a few tables inside and act all snobby then put me on a wooden deck with wrought iron chairs outside. Just be a good Texas winery, laid back with good people.