The Tax Cut was one of the few right things. But as for the War on Terror or simular actions? It had been ongoing since Desert Storm. Clinton had our troops deployed remember? Oh and lets not forget The Help was never given the troops. Same End Troop Strengths as 1996 all through the Bush two terms. Bush had the Golden Chance to be Reagan Two on national defense and wasted it.
There were no "similar actions". The reason we call it a "War on Terror" is because Bush took the offense and made it a real war. Clinton had badly undermined our military and it was obvious to every thinking person in the 90's that the next President was going to have a MAJOR task on his hands.
Bush was up to the task. He took the offense after 9/11 and never let up. Everyone was saying at the time that it was inevitable that another major attack was coming to the US. Guess what? It didn't and we have George W. to thank for that.
Bush was relentlessly sniped at (and still is today by many on the right as well) but he never gave in and our security today is due directly to him. Yes, he was Reagan II as you put it. And coming decades will show that he remade the Islamic World so that we could live in safety. I don't take it for granted...many do.