http://hockey.dobbersports.com/frozenpool_linecombo.php Go wild.
I brought up Sekac, because Weise also has more points than Jiri, who I happened to think should be placed next to Patches and Plekanec with PAP out.
As for comparing production of Eller and Sekac to Weise, it's kind of apples and oranges. Weise's production has come almost entirelly from being next to Pacioretty and in a top 6 role. Both Eller and Sekac haven't really had those opportunities, so the comparison is pretty moot.
As for Eller, he's spent 61.63% of his season with bottom 6 players, in a 3rd line role. Compares gto the top 6 his offensive opprotunities are limited.
32.78% with Sekac and Prust
8.67% with Bourque and Sekac
7.36% with Weise and Bourque
3.34 with Weise and Sekac
3.12% with Prust and Bourque
2.98% with Thomas and Sekac
1.85% with Bournival and Sekac
1.53% with Prust and Weise
As for getting ice time with top 6 players (i consider the top 6 to be pacioretty, plekanec, gallagher, pap, dd, and Galchenyuk), this is what it looks like:
3.12% with DD and Weise
2.75% with PAP and Sekac
5.01% with Bourque and PAP
That's 10.88%. Any other combinations with top 6 forwards account for less than 1% of his combinations.
So as you can see, it means nothing to compare Weise and Eller's production. Put Eller next to Pacioretty for 20% of his line combination use, and in a more offensive role, and see if he will have a few points than his current 15 total.