nowadays, the smartphone is getting bigger in size, eg. samsung galaxy note and note 2, sorta big in size, which you will have to use a leather protective case to cover it up.
if so, there will come up with one problem, while there is an incoming call, you would get pretty dizzy to pick up the call.
if you wish there is a way to make this easier, here we go~
this profile will be very helpful for your problem.
simply press the power button, tasker will help you pick up the call immediately. you may just go ahead to talk on the phone.
profile:
context1: state-incoming call
context2: state-Display Off
action1：input-Button, call
action2：task-Stop # this tasks will be stopped right there after picked up the call.