I believe there is room to respect and honor the different paths experienced teachers have taken without falling into playing "mine is better" - it has been one of the hallmarks of the cross-style seminars becoming more popular.

I've had individual classes and/or seminars with all the mainstream schools and some small offshoots, always felt very welcomed, always came away learning valuable stuff.

For one's regular own "home dojo" where the bulk of the training goes on, there is no substitute for observing a few classes before making a decision. And the "pedagogical styles" can be so different and appeal to different people - for instance the learner who does very well with structure and enjoys kata may prefer a Yoshinkan or similar style; under the Aikikai there is such variety of curriculum, teaching styles, etc - mostly with pretty freeform classes - that you can't even generalize.