I use Logic Pro.. mostly because I have been using it for over 20 years, and am very comfortable with it.. Just made the move to Logic Pro X..

I think the Daw one uses is not that critical.. They all do the job, some are stronger in some areas than other. It really boils down to what your are comfortable with..

I took a free music course at Coursera.org (a great place).. These are online college courses, offered for free. The songwriting course by Pat Patterson is great.. He is a teacher at Berklee online, there the course cost about $1200.. At Coursera, there are a HUGE number of students (65,000 at one of Pats courses..) so of course you get now personal one on one (go to Berklee to do that) you are graded by your peers. If they didn't get the material right, they might give you an unjustified bad grade.. Nothing you can do about that, except learn from their mistake. There is not penalty for failing, quoting, etc.. You just walk away with some great knowledge.. Right now I am taking how to write 4 part harmony like Mozart.. quite intriguing.) I won't have to rely on BIAB excellent harmony feature..

We had to use Reaper in one course, and because I never used it before it was a PIA. It would have been better had I learnt Reaper before the course began..

I have thought about Nuendo, but the price puts me off.