I agree with JSBean, you have to find you own way.
I've done 30 road marathons since 1980 with a PB of 2.30. I like light weight shoes like Nike Elite which probably don't exist any more. But it really is each to his own. Don't forget the blokes doing gait analysis may be on commission for a particular brand of shoe.
It would be worth your while to try several types. The ones that don't suit will still be good shoes for training over shorter distances and you can reserve your favoured pair for races.