prize Draw for 25000 miles when converting Points

Hi All,
Had this VS offer sent by email. Apparantly if you convert loyalty points into miles you get entered into a draw for 25,000 miles. My question is a) is it worth ditching the minimum number of points to go into the draw? and b) which is the best programme to convert points to miles?
I have points in:
Hyatt - 5000 points to 2000 miles
Hilton - 10000 points to 1500 miles
Marriott - 10000 points to 2000 miles
Not an expert in the relative values of hotel chain points but initial thinking is that the Hyatt ones probably have the best value conversion?
Would be grateful for any advice.
Cheers,
Dave
Had this VS offer sent by email. Apparantly if you convert loyalty points into miles you get entered into a draw for 25,000 miles. My question is a) is it worth ditching the minimum number of points to go into the draw? and b) which is the best programme to convert points to miles?
I have points in:
Hyatt - 5000 points to 2000 miles
Hilton - 10000 points to 1500 miles
Marriott - 10000 points to 2000 miles
Not an expert in the relative values of hotel chain points but initial thinking is that the Hyatt ones probably have the best value conversion?
Would be grateful for any advice.
Cheers,
Dave