I have converted 2003 FL over to 300mm HD Brembos with marked improvement over stock. I also have experience with $3k/each mono-block Brembo radial calipers.

 

Experience always is better than just talking and not knowing what you are talking about.

 

ever see hawg halters on a porsche or ferrari? nuff said.

 

I don't know anything about the other brand but I do know that the Brembos are a huge improvement over the previous brakes and they work great.

 

HHI for me. Really pleased with the performance, style and price.

 

I have Performance Machine 6 piston differential bore calipers on my EG.
I have 4 piston non-radial mounted Brembos on both my race bikes (Ducati 999 and Duc 944ss).
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I will say this, the PM brakes (2 - W/13" discs) are at least as strong as the&nbsp\\;\\\\\\; brembos on my 170mph racebike. They have great feel and I am quite sure they are stronger than the stock H/D brembos. Styling is absolutely no comparison between the two. PM (or the HH) is better lookng, hands down.
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I just finished 6k of riding with a friend and we switched bikes a few times along the way. He has a 05 RK with the stock (non-brembo) brakes on 16" wheels). I thought those brakes worked quite well enough, and they aren't even the new 08-on brembos.
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So IMO, I would do the good looking ones as they are probably about the same price as brembos that have the styling of an OEM caliper.
Either the HH or the PMs would be my choice.
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Now if it was my race bike, I probably would go with the most readily servicable (part accessible) brake if they worked just as well as each-other.
But that is not the case here.

YMMV

 

+1 ON BREMBO-RIDE SAFE

 

HHI 6 piston calipers here,
about 1/2 the weight of the stock calipers
Look rediculously nice as they do not stamp their name on the outside
Braking was improved greatly over the stock '07 calipers.
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Matched with a set of full floating rotors from Motorcycle Metal&nbsp\\;and the difference in braking is tremendous

 

HH is my choice.
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Don't think you could go wrong with either for sheer performance.

 

Thanks to all for the great response. Now I would like to add another couple of questions:

1. Which brake conversion would be the easiest to do?
2. Could either one be a bolt on proposition?
3. Is the cost difference substantial?
4. Do the rotors need to be changed as well?

Thanks guys.

Btw, I did ride an '08 with the Brembos for about 2K miles. Compared to my '06 it was like night and day. I would like to at least get some improvement for the money. BUT, ease of conversion and overall cost would also be part of the equation.