The six wireless things at the bottom are almost always doing something. The Dell laptop is my wife's work laptop (encrypted data traffic) - she works at home but interfaces all over the country all day. The MacBook Pro and i3 iMac are part timers (home use) with substantial use. The other computers are not used much. The BlueRay players stream Netflix and are on simultaneously at times.
For downloads: the MacBook Pro averages about 7 Mbps, the i3 iMac averages about 8.3 Mbps, The iPads average about 5 Mbps, and the iPhones average about 1.7 Mbps. I haven't measure the Dell laptop speeds, but would imagine they are similar to the MacBook Pro times - although I don't know what impact encryption has on network throughput.
For uploads: the MacBook Pro averages about 0.9 Mbps, the i3 iMac averages about 0.9 Mbps, The iPads average about 0.7 Mbps, and the iPhones average about 0.5 Mbps.
Questions:
1. Would upgrading the router and switch to a single higher speed router improve performance?
2. What 8 port 10/100/1000 router(s) would you recommend? - they're require Mac software compatibility















