I think you may be the only person to like both Sakhir and Yas Marina. Istanbul and Sepang are easily Tilke's best, while Austin and Sochi both look great, they need to be raced on to see what they're really like. It's difficult to pass judgement on Yeongam, since it's only had one incredibly wet race and I don't know what to think about Jaypee; the layout doesn't really do much for me, but I'd have to see it in action. As for the rest, Sakhir, Shanghai, Marina Bay and Valencia are all flawed circuits, but they do have their good points. They're all products of the immediate environment, and a few tewaks would make some of them - most notably Valencia and Marina Bay - very good. As for Abu Dhabi, it too is a product of its environment, but the phyical constraints of the circuit mean that remedying it is going to be very difficult.
Just was wondering what a tewak is
Of all the circuits you mentioned, they are not my favourites , as I prefer (F1 2010 game) flowing rhythm; and the classics [e.g. Spa; which have been driven by generations of racers for decades-showing my age

]; rather than the new 'up and down', 'tight, flat, no landscape, of Marina Bay, Yeongam, Shanghai, and Singapore. Valencia is tolerable; a longer, somewhat like circuit Gille Villeneuve track with less scenery (no trees). I enjoy Sahkir and Instabul the most of the new circuits; but give me Spa; Silverstone, Melbourne, Monza, Hockenheim, Montreal, for ambiance and sheer thrill. These circuits also seem to have more race fans
Hopefully the new Houston track will not be a repeat of past Tilke efforts
The Canadian Grand Prix in Montreal has often been one of the best races in numerous seasons 👍
The cancellation has also served to ramp up my excitement that much more for the season opener in Australia
Get well soon Robert Kubica 👍 [even though he took the last Canadian F1 driver's seat

]
Go Mark 👍
As for the cancellation; likely because of fear that demonstrators would take advantage of the opportunity for world media coverage to demonstrate for reform/change in Bahrain. I read that Suadia Arabia is already making promises to head off any demonstrations in that country.