Just doing a quick comparison on major features which matters alot on performance and NOT pricing
Cisco Indoor 1602 is dualband 3*3:2 and Ruckus Does not have dualband 3*3:2 product as far as i know however they do have a product which is a step down(ZF7363) AND a product which is really GOOD on performance (ZF7982)
ZF7982 is a (Again) 802.11a/b/g/n AP with Radio chains 3*3:3 which is far better than Cisco Indoor 1602. It has proven to be real workhorse in real challenging wifi environment.
My take: If you are constraint on pricing and for lighter usage environment then would suggest ZF7363 BUT if thinking ahead for 5-6 years and keeping in mind ever increasing bandwidth hungry app's on the prowl then better go for ZF7982.
Also please keep in mind, Keeping high performance AP does not guarantee BEST performance as Alot depends on client capabilities.