Here my experience with few laptop below.

HP NC 4200 - within 1 year the laptop already die twice on me and had change the entire mobo twice. Lucky still under warranty

IBM Thinkpad T & R series - very reliable and never had any hardware failure. Never call for their support therefore no idea how good ibm support is. Cons, freaking bulky

Now using acer ferrari 1000 - after using it for almost 4 months, kinda satisfy with it. No failure face so far.

True I myself would say that a compliment on the thinkpad series. The best support would be you wont need to call the support at all. Many always claim dell had the best support but they never think another way, dell always sell you problematic products. Eventhough the company can provide you service in a very fast speed, but you still losing time on waiting and especially when you had some important work to due