Hi and welcome back - Thorton is very well received for their sparkling wines and Wilson Creek has an Almond version that is very popular with a lot of people. I'm going to Doffo later this week - I hear that they have some good wines - I'll check out their sparkling version and report back to you.
Both Wilson Creek and Thorton are located along Rancho California Road. Thorton is one of the first wineries you will encounter as you enter wine country. It's on the right hand side.
Wilson Creek is at the very far end of the Rancho California Trail - about 4ish miles down the road. Its before Doffo, but one of the last wineries you'll see as you finish the Rancho California Trail.
Both Wilson Creek and Thorton have excellent faciltiies - and they both have restaurants. I prefer Wilson Creek's restaurant though as it is less costly and stuffy. Thorton has a high opinion of its restaurant and food in my opinion.
Others should be along and share some of their experiences soon.