Damn. I can actually make a research paper on WIFI cards now.
Long story short: I'm back on the Intel Advanced-N 6235. Supposedly it's the card with the WORST driver issues but right now, it's the only one pushing 1.2MBps through my home WIFI - without ANY problems (on STOCK Win 8 drivers of course).
Stock Realtek/Azurewave - Disconnection issues. Single Band.
Killer 1202 - Connection instability. Disconnection issues. Dropouts. Timeouts. Bluetooth mouse problems. Just thankful I didn't buy this crap for full price.
Broadcom Dual-Band N + 4.0 BT - Damn thing didn't even start.
Granted, all WIFI problems come in 2 parts: a) Adapter Issues and b) Router Issues, and my router (TP-Link Gigabit Single Band Advanced N) isn't quite the best out there, but right now, the 6235 is surprisingly giving me the least grief.
Maybe later when I've upgraded my home router I'll give the Killer another chance. But right now, I'm simply surprised that it's "GAMING GRADE" when it can't even download anything for more than 3 minutes without disconnecting.
i am using 1202 too with driver from their official, but i'm not getting any disconnection problem. Am getting 2.5mb/s dl speed from my uni line at peak hour, blue tooth works well too. Probably is router?