They are both fine security suites. You can give both a free 30-day trial and see which works best on your computer. This is the Norton forum, so chances are you won't get unbiased recommendations here, much like you won't get unbiased information on the Kaspersky forum either.
Kaspersky is probably the best on the market when it comes to protection, not just compared to Norton but to every other security vendor. They have topped pretty much all independent tests for several years. Kaspersky has been known run heavy and have less than stellar perfomance on some systems, though, while Norton is very light and offers a combination of very good protection and low system impact (Kasperksy runs just fine on most modern systems, though).
I'd suggest you take them both for a spin before you decide to part with your money. Whichever of them you choose in the end, you will get one of the best security suites on the market.