Depends on how fast you'll be riding. My commute is about 15 miles and I don't ride everyday so I go pretty hard and anything flapping in the wind drives me crazy with how much it slows me down. Has to be bike-specific, form-fitting kit for me and nothing else. Most commuters ride at a less intense pace. When it's cold and wet, I see a lot of Showers Pass-type wear that has a reputation for being good at staying warm and dry, but not the most breathable, which is fine at lower speeds.

Like what was posted above, when it's warm definitely pick athletic wear that's quick-drying. There are a lot more commuters out when the weather improves, and you can observe what others wear to get some more ideas.