GoDaddy

Do they offer varying levels of service? GoDaddy offers varying levels of service based off of the number of domains, the amount of disk space, number of databases, and the number of email address.
What backup services do they provide? GoDaddy offers the ability to do "Managed Backups," which are back ups of the files used for hosting. The databases are not backed up though.
Do they provide help in developing the page? GoDaddy provides a drag and drop service to create a website.
What bandwidth and transmission speeds do they offer? GoDaddy offers 150GB, 500GB, and 1000GB bandwidth, but does not advertise their transmission speeds.

Arvixe Web Hosting

Do they offer varying levels of service? Arvixe provides both Linux and ASP servers with varying price brackets. Each class provides unlimited disk space, unlimited monthly data transfer (bandwidth), and a "free" domain name for life. The lower bracket of each one includes 6 domains and the pro bracket includes an unlimited amount of websites. The higher the class (Personal, Business, Reseller, and VPS), the fewer people sharing the server with you.
What backup services do they provide? Arvixe backs up your files daily.
Do they provide help in developing the page? Arvixe is a web hosting company, and not a web development company so no.
What bandwidth and transmission speeds do they offer? Arvixe provides Unlimited bandwidth, but does not advertise transmission speeds.