I have (had) homes from WL, SP, Richmond America, and Toll Brother. All brand-new.
I would rank SP No. 1, Richmond second, Toll Brother third ( my experiences with their is out of state), and WL last.
SP's sales staff, construction staff, customer svs staff were very very good. I don't like their design studios (option / upgrade center).
WL: For the track I bought, the construction super was so bad to the point that I believe he and his crew had no clue how to build it right. They don't have a good qa qc process, and their construction management skill is poor.
My experience with Toll brother is not in CA. I didn't like them at all.
My experience with Richmond America has been nearly ten years. Their build quality was very good, and their customer svs staff was nice and flexible.
Several of my friends have Lennar homes in Coto, they all love Lennar.