The most powerful for sure, but easiest I'm not so sure... I'm just saying it's easy to get confused, I know it's a powerfull soft, but you have to admit that the UI is not user friendly.
Except for reading the RAW footers and populating the listbox with that information, the only thing that RAWanizer does is call command line software (raw2dng, dcraw and ffmpeg) with arguments you chose in the interface. Since the dev is gone, i can't help with RAWanizer because I don't have the source. But I can help you get to where you want to go, I hope.
Before with RAWanizer 0.30 it was like RAWmagic, you just put RAW and you get DNG easy, now I have difficulty just do to that 
That's the simplest part of the process. Just copy raw2dng from the RAWanizer /tools path, or download it from the internet. Then just drag your RAW file onto it and it will extract out each RAW frame as a DNG file. I know that sounds cumbersome, but one you get the hang of it very quick.
If you video post processing will work with DNGs, you're set. If you want cDNG, get the raw2cdng.exe file and use that.
I get DNG+Tiff (I don't know how to not get tiff), or I get merged RAW files without DNG, and I tried to get videos but I couldn't, am I an idiot ?
I'm the first idiot on this forum. Get in line

As you know, DNG files are only the red, green, blue values from the pixels. They need to be debayered if you're going make a video file. RAWanizer makes TIFFs to send to ffmpeg. Again, if you only want to use DNGs or cDNGs and post-process in other software, stop right here.
To create TIFFs, that's what dcraw does. Unfortunately, dcraw doesn't take command line arguments for multiple files and output paths. This is where RAWanizer begins to shine. However, you can run a batch file in your directory like this. In notepad, you'd save a file called, say, processraw.bat and put this line in it.
FOR %f in (*.dng) DO dcraw -T -w %f
I've read this fifty times and am still digesting it. I recommend reading it.
http://www.guillermoluijk.com/tutorial/dcraw/index_en.htmIt's still a beta so I know it's normal, I was just giving my 2 cents about how to make the UI simpler, feel free to tell me if what I proposed is bad, I just felt I could share my experience as a end user.
Naturally I want you to share your experiences. But such questions can illicit annoyed responses (because if you read through the thread you'll see the dev has not been around to answer many questions), it's a shortcoming of this forum. Just wanted to spare you that

Hope this gets you back on track!