Texas, Florida, Illinois, California:

We pronounced it like aint growing up in Dallas, and got laughed at for sounding too country. Now I pronounce it ant, and refuse to pronounce it as awnt because that sounds pompous, like Madonna talking with that fake English accent - we know she's from Michigan.

Also, I pronounce the word either and neither as eee-ther / nee-ther, and not eye-ther / nye-ther because... same reason I'm not British. Words aren't always necessarily pronounced the way they are spelled. If you feel like they should be, then start pronouncing 'do' like 'so' and not like 'too', and by all means pronounce two like it's spelled. Pronounce laugh loff, and see how people laugh at you the way they did when I used to say "Aint Shirley".

Texas / Illinois / Califonia
It's prononced ant. Not ont. Similarly, either is pronounced eee-ther, and not eye-ther, unless you want to be like Madonna and pretend you have an English accent. Go ahead and pronounce the word laugh as loff and notice how you get loffed at.