Roger is not strong enough for anyone to even make this comparison. People were calling Roger Gaban's peer in strength. Loki plays in a different realm now.
We got a statement from Gaban which is far better. He stated nobody on the planet could stop HK Harald. This is when WSM WB was around and Gaban knew about his strength firsthand. Roger was only ever stated to equal WB, and he didn't stand a shot at beating HK Harald as per Gaban, Roger's own underling.