Get Goodyear or the best brand available. You get what you pay for just remember that. You'll pay an extra $10-$20 per tire for the Goodyear but they'll last much longer than the cheapo brands.
Bull Hockey on that theory....no offense.
All tire companies make good tires, but there are some companies who don't have to add $10-30/tire just so you can own a tire with their name on them. Kumho has really set itself apart from a lot of companies in that they are a very good quality tire and they actually expect you only pay for the tire...:yes:. You could go to 5 different stores and get 5 different opinions on who has the best tire, but that opinion is based on what tire gives them the best profit margin.
Good Year Allegra's have worked great for me and I have used all sorts of Kumho tires on the farm and the previous job I was at where I was in charge of buying tires for Feed delivery trucks and pickups so I know they will do you good.
Go with the place that gives you free tire hazard and will back up your tire if it breaks a belt after 20,000 miles and gives you that in writing. You don't have to worry about weight issues, or off road use(at least I hope not) with a taurus so look for the best deal and go for it.