The Saville Row line of silvertips is great - I have the SR3122 - which at 22mm is just right for me for everyday use. The Shavemacs are quite similar to the Saville Row brushes and the consensus is that they are both made by Shavemac to slightly different specifications.

As for the Rooney, I have a #1 large (26mm) silvertip - the #1 model has a shorter loft and is quite dense and not floppy. I have the B&B finest and its quite a bit flopier than my Rooney and I think the softness of the B&B finest bristles is very similar to the Rooney silvertip - you save something like 50% if you buy the Rooney silvertip, as opposed to the Rooney finest silvertip - the difference between the two Rooney grades is going to be pretty minor.

The Rooney #1 super silvertip in small (22mm) costs $75 at classic shaving, the #1 super silvertip in medium (24mm) costs $100 and the #1 super silvertip in large (26mm) costs $160.

I find my #1 large to be a little on the big size - I only bought it because I got a great deal on a nearly new one from someone who bought it at closeout prices If I were picking from scratch, I would go for either the small or medium.

The #1 has a shorter loft than the other models, which makes it less floppy.

If you only want to buy one silvertip brush, I would go for the Saville Row or Shavemac - nice soft bristles, lightbulb-shaped head - which makes them even stiffer and well-priced. Either of these brushes will work with any cream or soap you heart may wish to use. The Rooney is a little less stiff - but still not floppy - so doesn't work quite as well on the harder soaps (Trumper, T&H, etc.), but works very well with the softer glycerine-based soaps.