There is nothing WRONG with pin style blades! If you are doing mostly outside cuts and/or larger inside cuts, pin style work quite well. You just have to drill larger starter holes for them on 'inside' cuts.
It is when you get into smaller inside cuts that the 'pin-less style come into importance because they require alot smaller starter holes.
As far as brand, 'Different strokes for differn't folks", everyone has their favorite brand for various reasons.
As far a breakage, you could be trying to push too hard, let the blade do the cutting. All you really need to do is guide the material into the blade. At some point, depending on the wood and thickness, you will find that the blade wants to cut faster than you can keep up with!! It happens when you least expect it!
The tooth count, the speed of the saw, your experiance, and the thickness and kind of wood is up to you and your trial and error. No one can tell you what is best! We more experianced scrollers know what works for us and can advise you on how to overcome some problems but the truth is, "Only the Shadow knows".
It is up to you and practice and experiance to find the answers. Sorry to burst your bubble, and DON'T go buy every blade on the market or expect someone to solve your problems becuse we can't.
I would advise you to buy about 3 or 4 differen't sizes of blades (probably a dozen or so of each) and make some saw dust.
Rog