It depends on the size of the river I'm fishing. On the smallest rivers like the Samishj i use an 11 foot single hander that G.Loomis no longer makes. On smaller rivers like the forks of the Sky or forks of the Stilly, I prefer a 13 footer. On the larger rivers like the Skagit, Thompson, mainstem Sky etc. I prefer a 15 foot 8/9 weight in the summer and my 16 foot 11 weight in winter.
I sure would like to see a fast action 17 or 18 foot 11 weight made to use on these bigger rivers in winter, better mending and line control along with easier long lining.