Go for the kill this year or look to the future?

So I'm in a keeper league, where you can keep 2 players if you sacrifice the round above which they were drafted.

I won my league last year, so I have tenth pick. In my position I have three excellent keepers.

C Johnson -- lose rd 1
A Foster -- lose rd 3
J Graham -- lose rd 5

The question is, do I keep C Johnson and pick up Graham on the snake, or keep Graham and Foster with the prospect of keeping them both at rds 2 and 4 respectively next year?

The first option gives me a very solid core going into the rest of the draft (even if I'm reaching for Graham at 11), the second gives me a slightly less good first rd pick, but allows me to continue my run of super-solid keepers.