Exactlly, the current wait time for LPR is 4.76 yrs. on F2A category (when you petition your spouse with Greencard).

For Citizens, it takes somewhere betn. 9-12 months after you have your naturalization certificate in your hand.

But if you wanna marry your gurl and apply for non-immigrant visa (like B1/B2 or F1) then never ever apply for her immigrant visa. If you don't wanna apply for non-immigrant visa after you marry her, then simply go ahead and file I-130 for her. Don't wait until you get your Citizenship.