It mostly comes down to the kind of games you primarily play.
Are you an RTS player? Topre probably isn't for you. A few notable players have said that they dislike Topre when compared to MX blues or even rubber domes. The majority of these players said that it feels like too much of a "middle ground" in comparison to MX or rubber dome. Usually one or the other is preferred.
Are you an ARTS/MOBA player? It matters less than you think here. Mouse is a much bigger component in these types of games, but the keyboard certainly still matters. I'm personally of the opinion that MX switches are better, but some Chinese DotA pros swear by their realforce keyboards.
Are you an FPS player? MX reds/blacks. I've never met a CS player who uses anything else. Most TF2 players (and I know a lot of those) use MX reds/blacks as well, but I've talked to some that use MX blues as well. There's no question here.
Anyway, that's my $0.02, so take it how you will. Don't swear by this post, I'm biased against Topre. I know plenty of casual (read: not playing for money) gamers use Topre with no problem.
I use MX reds mostly, but MX blues and browns do make appearances in my gaming rotation.
H2k Rubino uses G710+.
I used to play CS with him back in the glory days of 1.6. I don't think he cares too much about his equipmen TBH. As long as it works and is stable, he's happy I guess.
Black/reds = most common for gaming, but I think the reason is simply because people don't care too much about keyboards in genereal. Why use 3x the price on something they don't care about? And when they first get a mechanical keyboard, it's probably gonna be one of the most known manufacturer like SteelSeries who only offer red and black. Or they type "best switch for gaming" in Google (you know what they'll find, and they just go with it.).
It's all about preference. I enjoy gaming on blues, but black is also good. Red is too light for me, and I haven't tried browns enough to have an opinion about them for gaming.
I think I could game on any switch, and I wouln't feel any difference in my performance, as long as I'm used to it. And I really do consider myself as a long time hardcore gamer on a semi-competative level.
I've noticed that you use the HHKB-S, what do you use that for? Do you use that for typing/general use and then use the blue keyboard for gaming or do you use the HHKB for all things including gaming?
Would love to know what the general consensus is surrounding these boards, I mean, obviously I know that most people who buy/use them are programmers and what not (I'm a website developer myself) so the appeal is there, but I would be using it as my main driver and I would be putting my Noppoo away when it did arrive etc.
I have my HHKB at work, and I'm a graphic designer. So my general use for it is shortcuts in Ps/Id/Ai, and some typing.
I did use it at home for a short period, but my workspace is safe from robbery, so I just keep it there at all time.
The MX blue is at my home, and is used for gaming and casual stuff.
For me it's the best of both worlds. Topre is delicious to press down, and I actually wish I did more typing at work.
I'm still not sure if MX blue is my final destination for home usage, I'm still curious to try out MX brown for a longer period of time.
The work keyboard is set, there is no way I will switch out topre.
I might get a HHKB or RF with no silence at home aswell. Time and money will tell.