If you do not have regular healthcare costs, and have a high tax rate, the HDHP is almost always the better move. I personally had some pretty significant healthcare costs this year (spinal surgery) to max out my deductible (hadn't had any claims in like the 12 years prior) and have a decent taxable income. The tax benefits of the HSA would have effectively covered my entire deductible, even just looking at this year.

If you don't have significant regular healthcare costs, in 2-3 years you will likely build up an HSA account that will cover your annual max out of pocket. If things change, you can adjust your healthcare coverage as pre-existing conditions don't affect your rates.

The higher your income, and the less-significant your regular healthcare costs are, the better HDHP with HSA becomes.