So I've finally set a goal for all my miles hoarding activities. I'd like to be able to redeem a RTW ticket in economy within the next few months (let's say 3-4).

Here's my current balance in FF programs:
United: 165K
Delta: 103K
American: 49K

The question here is do I use all of my United miles to redeem one or do I try to find additional offers on Delta to reach the 180K sky peso threshold necessary for the ticket.

Like probably everyone else on here I value my United miles much more than Sky pesos thus I'd prefer to use my United miles in some other way.

However, I'm not sure what other opportunities are out there for Delta. I already have the Skymiles Amex card (30K signup bonus) and plan on applying for the business card (currently my offer is 35k on that after $500 spend). I've already done the Fidelity signup bonus on both Delta and United.

I can't find any information on the OneWorld RTW mileage requirement but I don't really see myself being able to reach that by then (at best I'll be able to get another 50K or so I'm guessing).

Ideas? Any helpful advice is appreciated.