At 13" overall length and 53oz for the SRH vs 12.4" and 49.2oz for the Bisley, I don't see a huge difference. Really personal preference, trigger reach and fit will be far more important.

I know I don't have the experience of many on this site, but a 5" barrel strikes me as ideal for a packable woods gun. Now if they made the Toklat in 480 you'd have the perfect solution. Alternatively, buy your choice and get a custom smith to trim it down to size.