It really doesn't matter do either way. Sorry I don't cycle any of my tank so i can't really give good advice on that. But i would suggest to read the links i am going to post for you and see what is better for you. I am going to give you
1) fish in (with fish in)cycle instruction
2) water changes for established tank
3) fishless (without fish) cycle
The link about water changes i really advice to read so you can see how to take care of the established tank. You need to make sure to rinse/swish filter media weekly with every water change. Sometimes filter cartridges can gather a lot of gunk on them and that could cause ammonia problems. Make sure it's tank water or water that has been dechlorinated though. Make sure you do weekly water changes(50%) and you always can do more water changes at any time when you need to.
There's some info on fishless cycling in that article as well.
Sorry i hope it helps. If you have more question about cycling here is a lot of people who does it and will give you best advice. I never cycle any of my tanks. I hope the links i gave you will help you:)