1. I know how to make a paper wallet in Bitaddress.org and in Coinbase...which one do you recommend?
Most people around here recommend Bitaddress.org. It can run offline, the source code has been reviewed and is widely accepted as safe. There is always a possibility that they could put up a hacked webpage that hasn't been reviewed, and that you could end up becoming the victim, but that could happen with Coinbase as well.
2. It is recommended to make a Paper Wallet in Bitaddress.org OFFLINE. Would it suffice to just go to Bitaddress.org, save the webpage (using Firefox), go offline, open saved page and produce BTC address/paper wallet, & Print? Or do I have to take any more extra steps for maximum security?
That depends on how much you are storing, and how concerned you are about security. As others have pointed out, there is a possibility that you already have some sort of malware running on your computer and don't even know it. If you do, then that malware could capture your private keys as you generate them, and then report them back to the attacker later when the computer is reconnected to the internet.
3. Once the paper wallet has been produced/printed (whether using Bitaddress.org or Coinbase), I can now simply deposit BTC to from my coinbase account using the BTC address right?
Correct.
4. Can I continuously load as much BTC as I want in my BTC paper wallet using the BTC address?
Yes.
There is no limit causing me to have to create another paper wallet?
No. No limit.
5. If I withdraw all my funds (because theres no way to just remove some of the BTC..all or nothing), to another BTC address, is it possible for me to reuse my old paper wallet or should I just 'scrap' it?
It is possible to just remove some of the BTC (and to re-use an address), but it is much safer to just remove all the BTC and scrap it.
6. Basically my BTC is store in the blockchain. The Paper Wallet is only secure because it has not been contaminated by the internet. Upon creating it, it has never been ONLINE. Therefore my Private Key is completely safe from any type of hacks/malware/virus/etc..THe paper wallet does not actually contain the BTC within the QRF code, but the paper wallet itself is more of an ACCESS KEY to blockchain to access your BTC funds...am i correct?
Correct.