gravel path and patio

I am putting in a gravel path and patio area this weekend and have a few questions. For the 8-10ft patio area I plan on laying down square pavers spaced about 3-4 inches apart with gravel inbetween the pavers. So I have a few choices on gravel. I can order 1/4-3/4 minus gravel or smooth river rock of the same sizes. I thought that the small size rock would pack down more firmly and be nicer to walk on AND fit better between the pavers. But maybe the larger size would be less likely to be stuck in shoes and wouldn't get kicked off the path as easy? I just don't know!!!!!
Also do you think that the pavers spaced with gravel in between will be an easy area to put chairs on? I hate the look of pavers that are packed tightly together.
Okay, one last question. I was planning on laying the gravel 2-3 inches deep on the pathway. Any input on the depth would be great. As would any input on the gravel size/type and my paver spacing idea!!!!!!!!