Opinion On Size Rims For Sedan?

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I'm looking into buying new wheels for my yaris sedan, but I'm not sure what size would be best. I've been reading a lot of threads and I have a few questions concerning rims and my yaris sedan. Since most of the time I see example pics of the LB I can only assume all replies refer to the LB. Whether or not replies were based on both the sedan and yaris I dont know so I made my own thread for my specific situation.

Anyhow, which size would look best on my sedan? Also I dont plan on ever lowering my car, just in case some of you would think the size would depend on that. Another few things I read about was how bigger sizes can affect acceleration and smoothness while driving and I wanted some clarification on that.

Pretty much to sum it all up...Which would look best, but would least affect smoothness and acceleration?

Thanks in advance for any help.