Way of Kings is the best book in the series, so if you didn't like that, then you won't like the series.

Jordan tended to ramble (especially about women's clothing), but I wouldn't say he was a worse writer. Some of his writing was exceptional. It started tapering off near the end because he was dying. Book 11 especially is a hard slog. But when he was healthy he had some great writing.

Sanderson is a great writer too, but he uses a different pacing style, which is more modern. So his writing will click more with people today. I really loved how it picked the pace back up with WoT after the slog, brought it all together, and finished the epic story. Jordan had extensive notes, and he and Sanderson worked together to ensure the story was finished. I really love that Sanderson respected Jordan's work, and finished it as Jordan would have instead of trying to make it his own thing.

I love both authors, and have read all of WoT and everything Sanderson has written. If you want to give an original Sanderson book a try, start with Mistborn. That book is very good, and isn't a 1000 page introduction to a 14,000 page saga. It's short and there are two more books that conclude the trilogy. He wrote more Mistborn books later, but they're in a whole different era, and weren't to my liking. The original trilogy is great!