Number 3.
Both 92 and 84 have WAY too much car traffic to be comfortable as climbs. Don't let OLH scare you. Yes, it's got some steep pitches, but overall it's even doable by old fat guys like me.
One caveat is that 35 does not go straight through to 92 from the north anymore. You'll have to drop down Crystal Springs under the Doran Bridge, hang a right on Polhemus, and climb up to the Ralston Trail to get back on Canada. Not a big deal, but I find Polhemus a lot less fun than Skyline.
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