Looking on the internet deeply has found these results:

Have a good one is the most popular phrase on the web.

Have a great one 1128,000 results on the web	Have a good one 174,100,000 results on the web More popular!
Some examples and use cases from the internet:	Some examples and use cases from the internet:
happy birthday i hope you have a great one and may god bless you with so many more. happy birthday i hope you have a great one and may god bless you with ... bbwkitten. Dear Richard,. Hope you have the bestest birthday EVER!!! Have a great one! :) Megan Hi Rick,. Just wanted to say Happy Birthday. Hope you have a great one! Wishing all the best to you and your family. Christine Smith Michigan ... Feb 5, 2014 ... You can say: Many happy returns of the day! Many more happy returns! I wish you a wonderful birthday! Have a great one! Have a good one!	Now y'all have a good one. Jeff, have a good one. Have a good one, Erica. Have a good one, all right? Have a good one, guys. Dana, Toni, have a good one. Have a good one, Collins. Have a good one, Special K.

Have a great one

1128,000 results on the web

Have a good one

174,100,000 results on the web

More popular!

happy birthday i hope you have a great one and may god bless you with so many more. happy birthday i hope you have a great one and may god bless you with ...
bbwkitten.
Dear Richard,. Hope you have the bestest birthday EVER!!! Have a great one! :) Megan
Hi Rick,. Just wanted to say Happy Birthday. Hope you have a great one! Wishing all the best to you and your family. Christine Smith Michigan ...
Feb 5, 2014 ... You can say: Many happy returns of the day! Many more happy returns! I wish you a wonderful birthday! Have a great one! Have a good one!