240-Servings Optimum Nutrition Micronized Creatine Powder (Unflavored) - $14.83 @ Amazon w/ S&S

Any benefit to micronized vs general?

No, theyre all creatine. Only real difference looks to be absorption rate, which isn't needed. Mono is the cheapest per so would get that and use 5g a day. Creatine is one of the few supplements with a proven track record of actually being beneficial.

https://examine.com/supplements/creatine/

"There are many different forms of creatine available on the market, but creatine monohydrate is the cheapest and most effective. Another option is micronized creatine monohydrate, which dissolves in water more easily and can be more practical.

Creatine monohydrate can be supplemented through a loading protocol. To start loading, take 0.3 grams per kilogram of bodyweight per day for 5–7 days, then follow with at least 0.03 g/kg/day either for three weeks (if cycling) or indefinitely (without additional loading phases).

For a 180 lb (82 kg) person, this translates to 25 g/day during the loading phase and 2.5 g/day afterward, although many users take 5 g/day due to the low price of creatine and the possibility of experiencing increased benefits. Higher doses (up to 10 g/day) may be beneficial for people with a high amount of muscle mass and high activity levels or for those who are non-responders to the lower 5 g/day dose.

Stomach cramping can occur when creatine is supplemented without sufficient water. Diarrhea and nausea can occur when too much creatine is supplemented at once, in which case doses should be spread out over the day and taken with meals."