To talk about "feeling" is not a very scientific explanation.
Here's the problem with that though.
LOOK and FEEL are the major differences between the controls, and are NOT scientific.
The controls are what you FEEL while playing, and do have a large impact on the experience.
The LOOK of the control panel is what you SEE when you approach the cabinet.
This is a very subjective hobby, so how I FEEL about something may differ from how YOU feel about it.
If all you want are controls that FUNCTION, pretty much anything will do.
They all FUNCTION similarly, but FEEL different.
I've been through about three sets of joysticks on my Crazy Climber cabinet, looking for exactly the right FEEL that I'm after on them.
All the joysticks have FUNCTIONED so far; but the variables in each (response, stick travel, etc...) have combined to create a different FEEL to each of them.
You could get all scientific on that, to figure out that x" of travel is optimal in the PERFECT stick, etc... but in the end you are left with "this stick doesn't FEEL the way I want it to".
Using Happ for example, there is a big difference in FEEL between the Happ Ultimates, Competitions, and Supers.
All three FUNCTION similarly, but the Ultimates FEEL like cheap joysticks when compared to the other two.
You can FEEL them grinding away on themselves as they move.
They use the same switches on them that the Comps do, use very SIMILAR internal parts, but the parts don't interact as smoothly in the Ultimates, as they do in the Comps.
This creates a different FEEL to the sticks.
Likewise with trackballs.
The $20.00 off-the-shelf PC trackballs FEEL like a cheap PC trackball.
The Suzo/Ultimarc/Betson all feel "good", but there is a distinct difference when they are compared to a Happ.
Is the Happ actually worth how much more you have to pay to get it though?
To me, yes--to others, no.
This hobby is alot like buying cars.
The extra money that they charge for a Lexus isn't worth it to ME, but my boss' wife was willing to pay it.
I'm driving a '92 Jeep Wrangler that fits me, and my lifestyle, much better than her Lexus SUV would.