Hello! The best GTX 970s are:
- Gigabyte - prettiest (imo), best cooling capacity, backplate, extremely overclockable (likely to go past 1.5 Ghz), has a led, most costful of all GTX 970 (still very cheap for the performance)
- MSI - my favorite, semi - passive cooling (fans are off while GPU is not hot, very cool feature), likely quietest of them all, won't void your warranty if changing cooler, has a led, also amazing OC potential (almost as likely as Gigabyte to cross 1.5 Ghz), much shorter than Gigabyte, cheaper than Gigabyte's, military cLass 4 components for even better OC
- Asus - semi passive cooling, as quiet as MSI's, has backplate, worst OC potential of them all, as it has less power suppply connections, therefore less stable overclocks, is the cheapest of them all
Also, there are many, many more, all are very good so if only, say, Zotac's was available in your cpuntry then don't hestitat to buy it. The only one I'd stay away from is EVGA's, as the rumours about bad cooling seem to be true.
Availability info!
They are likely to be available wherever you live soon, as I have ordered mine today, It's gonna arrive this week, it's MSI's one, for your information I live in Poland, Europe.