If you don't qualify for a BTO, would you buy a re-sale HDB for $1m or a condo for $2m (assuming available financing for both, and at decently good locations)?

I would go for condo! Price of resale HDB is stagnant and somewhat on a downward trend. It doesnt look like it will increase anytime soon with the huge supply of BTOs.

Condo has much more room for capital appreciation!

Depending on location, wouldn't buy condo for $2m. Might as well buy a landed.

Use 1.5m to buy new launch condo

It depends on your exit strategy. After X years of stay, what are the chances of selling the resale HDB for ($1mil + bank interest + CPF interest); similar for the condo. Do keep in mind that HDB is not exactly a free market anymore as HDB valuation is no longer done by private valuers but by HDB inhouse valuers. A property is usually a person's biggest investment (and liability), hence do look at the future returns before locking in.

:)

Assuming both equally good location, and assuming financially you can afford both with no issues. Then I would personally prefer condo over resale.

Why? Because if you can afford condo, the potential for en bloc is higher. Price appreciation is also better. Condo also commands higher rental if you can find the right tenants.

And condo facilities are good for personal enjoyment!! (at a higher cost though, because condo fees more ex than HDB conservency fees)