Well, I fly LY mostly TLV->europe (zone C)->TLV on V class.

That's a 50 points accrual each way, or 100 pts for rt. If I would fly direct with any airlines, it would be 2000-4000 miles (my classes usually give me 50% of flown miles), but with indirect flights, and FTL bonus, let's agree on 4500 miles (when paying roughly the same).

That's 3000 points for a flight ex-NYC (or 4000 ex-LAX), i.e., 30 r/t to get a free C ticket NYC->TLV->NYC (or 40 for LAX->TLV->LAX). With LH I would need 120Kmiles which are 27 r/t to europe both from NYC and LAX.

So for C redemption, LH is better for me (but if you usually fly C or F, you may have different accrual rates).

Do note that for Y redemption to zone C, in ElAl you need 9 r/ts on V class, and ~7 in LH (but at the same time, if you don't enjoy the FTL bonus, you may need more, especially in the case of direct flights).