Thomastik strike again. These, alongside their Plectrum range are the best strings I have used for acoustic guitar. There is a very consistent and strong tone and projection across the strings, with the treble side in particular feeling very supple under the fingers. Yes, they are more expensive than other brands, but for the quality and longevity they work out cheaper in the long run. Highly recommended.
Having switched to Thomastik Power Brights for the electric I thought I would try the acoustic strings. They do not disappoint and like the electric strings they sound great, rich and powerful with a nice round tone, better than anything else I have tried and I have tried everything. I am converted. They are not the cheapest strings but the quality is high.