I did a comparison last night, and think I'll take both.
|Sennelier & Schmincke 12 pan metal palattes ©|
The Sennelier is a nice palette but like Graham has a wee bit more honey in it for my personal taste and dries slowly. I don't have a complete Winsor Newton in a 12 pan set, and have a much larger Daniel Smith paint Schmincke palette.
In the end I prefer Winsor Newton & Schmincke paints more than Sennelier, Graham and Daniel Smith watercolor which I use for botanicals.
We all have our preferences.