ETH Rig, D3, L3+, or S9s where would you invest and why?

[ThinShark]

I'm moving forward with my mining business. I'm trying to foresee the future direction of best profitability. For me, the obvious choices are ETH rigs, Antminer D3s, Antminer L3+, and Antminer S9s. Current profit potential looks like D3s but many people are forecasting a huge increase in difficulty and drop in profitability. If you had 10K to invest in mining equipment, what would you buy to put into operation?

I'm very interested in various perspectives.

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[CryptoCrane]

I'm not a GPU rig expert, but I can speak to the AntMiner comparison. Assuming you were to purchase from Bitmain's next available batches, I would go in this order:

AntMiner L3+
AntMiner D3
AntMiner S9

While everyone is drooling over the D3 right now, the rewards are far too difficult to predict this far in advance. The next available batch will likely be for December - which is an eternity from now in crypto-time. The L3+ on the other hand has proven to be a much more reliable and steady earner - especially if you're mining lesser known alt-coins using an automatic profit switching pool. The difficulty spike has already occurred and the profits are much easier to predict. The AntMiner S9 is only a good option if Bitcoin remains high, but it still isn't nearly as profitable as the L3+.

[ESJai]

CryptoCrane basically said it all, but I would add GPU rigs in the list like this.

(Best)
AntMiner L3+
AntMiner D3
Nvidia rig(1060/1070/1080Ti)
AMD rig(RX470/570/48/580)
AntMiner S9
(Worst)

The reason I take Nvidia over AMD is that it does better on more algorithms than AMD. AMD is only unfairly good at ethash coins because of its price and power draw. Other than that, it's just like shit.
PS: If you can't get the GPUs at a cheap price, don't even bother.

[darkshad]

So today is October 18th 2017.  Was wondering if the list below has stayed the same or if there have been some changes.

CryptoCrane basically said it all, but I would add GPU rigs in the list like this.

(Best)
AntMiner L3+
AntMiner D3
Nvidia rig(1060/1070/1080Ti)
AMD rig(RX470/570/48/580)
AntMiner S9
(Worst)

The reason I take Nvidia over AMD is that it does better on more algorithms than AMD. AMD is only unfairly good at ethash coins because of its price and power draw. Other than that, it's just like shit.
PS: If you can't get the GPUs at a cheap price, don't even bother.

[shaninium]

So today is October 18th 2017.  Was wondering if the list below has stayed the same or if there have been some changes.

CryptoCrane basically said it all, but I would add GPU rigs in the list like this.

(Best)
AntMiner L3+
AntMiner D3
Nvidia rig(1060/1070/1080Ti)
AMD rig(RX470/570/48/580)
AntMiner S9
(Worst)

The reason I take Nvidia over AMD is that it does better on more algorithms than AMD. AMD is only unfairly good at ethash coins because of its price and power draw. Other than that, it's just like shit.
PS: If you can't get the GPUs at a cheap price, don't even bother.

S9 shouldn't be last now, time will tell if bitcoin gold improves nvidias profitability.