Have a look at the various software websites; most, if not all, have demo versions to look at and try. Or as MaecW pointed out, any of the free ones can be trialled without cost.
And it is like KGarrad mentioned, what is the best beer, or best car? Everyone has their preference. I also used RootsMagic, after giving Legacy a go, and before that Generations. I now use an online site, Tribalpages, which provides a free version, as well as paid ones which give you options for more photos and more data options.