Ultimately I think people should use whichever control method they like the most, whichever makes the game most enjoyable. Highly skilled players on this forum seem to prefer sticks. I was reluctant to spend the money to get a stick without knowing for sure that I would grow to prefer it, I had to import it to the UK and it cost almost as much as the Xbox itself. It would be nice if people on the fence had the opportunity to try one out for a decent amount of time before purchasing.
I grew up playing on pads and only started using sticks 2-3 years ago, I understand the aversion and initially felt I would be better on a pad. I grew to like using a stick so much that I've since bought several for my various consoles. I'm a mediocre player and relatively new to STGs, it would be interesting to hear what more experienced players had to say.