Use WiiLink WFC Patcher or patch with Gecko OS?

General
1

What are the differences between those two? Which of them should I use?

I got the Patcher from the Homebrew browser.

Also, how can I use Wiilink DNS and Wiilink WFC DNS at the same time?

2

With the patcher, you can only use real discs that you own. With gecko codes, you can use any game (even WiiWare), but there’s a chance the code is incorrect and fails (usually 20910 iirc).

3

But to run those, I have to use a loader. Gecko OS Application wont work.