are big creeks good to hunt on there a lot of cover where im speakin of and there is always a few little rubs

The bigger the creek, the less deer crossing trails there are and the more concentrated the deer will be crossing the creek. Find a good crossing where several trails merge on either side and then set up using the wind to your advantage. It should be a good area.

Yeap any water is a good thing, especially if it is dry. Not only that creeks provide a natural funnel for deer to travel along. If you have lots of cover they can be even better, as deer will hit the creek to travel from food to bed & vice versa. If your finding smaller rubs, then you' ll need to hop on the buck trails(usually the one less travelled running adjacent to the main highways) follow them back and my guess is in small meadow, etc you' ll find your bigger rubs. I rarely find huge rubs right near the water source but rather leading to the source. Finding a dominant bucks route can be a long task, but once you have found it it will be rewarding. I would then set up on it rather than the main or the creek itself, will provide you with better concealment then on the edge of a open creek bed, more productive on what you are after (bucks) and less eyes mean less noses as well = less chance and getting busted. If your creek bed takes you from cover(beds) to food, it will be dynamite and fairly easy to select several locations. Ones that are just routes take more time and may even takes years to develop a plan to hunt them successfully..in that case I would concentrate on the trails that lead to the water as a source to the deer at first. Again backing up of the actual creek bed, you can still setup so you can view the creek bed if you wish, just not right on the edge. If you have access to a game camera that would be an excellent way to scout different areas.