[Doc]

It's going to depend on what you want, what you're going to use it for primarily, and what you're willing to accept if there's compromises. It also depends on what you're used to looking at.

If you're used to looking at show cars, then 20's appear too small, 22's appear about "right" and anything larger is...well... larger. Show cars are all about looks; ride quality and performance are a non-issue. Guys will spend crazy amounts of money strictly for the "look". They may also crap up the performance, handling and ride quality in the process but they don't care; in fact they like to cruise around slowly so people can see what they've got. Show cars are all about looks.

If you're used to looking at race cars, looks are important but that's secondary to performance; performance is EVERYTHING. Guys will spend crazy amounts of money trying to wring out every last ounce of power, reduce every pound of weight, squeeze every tenth of a second out of their car's performance. If those are the kinds of cars you're used to looking at then 22's are ridiculously huge looking. Race cars don't run huge rims with rubber band tires. They have smaller diameter rims and taller sidewall tires because the flexing of the tire helps in performance, acceleration, and the smaller rims weigh less which reduces unsprung weight. Reducing unsprung weight is an EXTREMELY high priority for race car owners.

Your decision on what size rims to get will depend on what's important to you; pure and simple. Don't let other's influence you UNLESS you're primarily into a "show" car then absolutely what other's think is important because they're the ones you're "showing" to. Show cars are about getting attention and approval from others; performance cars are about getting someplace faster than others. Opposite goals, opposite looks. Both can be expensive. Both will affect the ride quality.

Show cars will typically affect the ride quality in a negative direction away from the stock ride. Performance cars -may- affect the ride quality in a slightly negative direction depending on how stiff a suspension setup you go with. Although to many who are into performance they consider that a positive instead of a soft, mushy ride. Show cars will take longer to accelerate and slow down than stock because of the increased weight and moving the weight farther out from the center with larger diameter wheels. Performance cars will accelerate quicker and stop quicker with their smaller wheels which is precisely why they were chosen.

The moment you move away from the averaged level of performance the stock car setup gives you, there's typically compromises of some kind. It all depends on what's the most important to you and what you're willing to accept and live with.