Multiple Choice to Different Redirects

For issue one, you can accomplish this a couple different ways. You could use the gform_confirmation hook to change the redirect URL after the form is submitted.

Or you could set up the query string in your confirmation settings to a custom page you create, then have that page template do the redirection based on the value you send to that page.

I'm not sure about your second issue, but if you post a link to your site, we should be able to help. Sounds like you are using the left labels rather than top labels. If you did not deliberately select left labels, it's possible your theme is overriding the label location. I believe Woothemes does this. A link to your site with the form embedded in a page will help.

Your best bet is to contact Woothemes support and ask them how to remove the CSS that is overriding the Gravity Forms CSS. Woo adds Gravity Forms specific CSS to their stylesheets, but it's not always ideal, especially in this case.