Muhle r41 vs Merkur HD 37c vs Gillette Vintage Open Comb or Fat Boy - which to buy?

Hi,

need your help and recommendations!

Now I shave by Muhle r89 during last year and wanna more aggressive razor for a smooth and close shave 7 days a week:thumbup1:



Which of these four variants to choose:



1. Muhle r41

2. Merkur HD 37c

3. Gillette vintage " open comb " 1930's

4. Gillette Fat Boy



I use razor blades Feather & Personna Med Prep:001_rolle