Is iReal Pro better than Band in a Box

I'd be interested in any views on this. I suspect that iRP is fast becoming the standard for jazzers which is argument enough to swap over. I'd be interested in how you think functionality differs and what the pros and cons of each are. Having used BiaB for years I am now considering using iRP. We will put files for both in Dropbox for tunes we are working on. Anyone can, of course, edit these for the benefit of all.