Should i go to apple or verizon?

My contracts up with verizon and i'm due for an upgrade. I'm leaning toward an iPhone. Based on previous experiences, would you recommend going to the verizon store or the apple store? Is there a difference. Also my previous plan was unlimited data, i'm assuming i could still continue that, since its a "grandfather plan" and i'm not switching providers, i hope.

Apple

Apple. I have use iPhone for almost 4 years. I'm very satisfy with iPhone.

It doesn't matter, they charge the same amount

and in order to KEEP your unlimited plan you have to pay FULL retail price for the replacement phone, you can no longer get the discounted priced phone. Verizon canceled this ability

so the iPhone 5 16gb, which is $199 with a new 2-year contract, would cost you $649 if you want to keep your unlmited plan