I low-key think Drogba is probably the best striker the league has seen, in terms of what he brought to the team. As you point out, he facilitated the Lampard explosion as a 20 goal a season man, was an asset defending set pieces, had a great touch and a much better big game player than Van Nistelrooy, Henry, Shearer etc.
This is another take that I see every now and then and just do not see any real basis for.
Drogba was in the PL for 8 seasons. In this time he put together two incredible campaigns (2009/10, by far his best, and 2006/07) and two very good ones (the first two title-winning campaigns under Mourinho). That leaves another four seasons, or half his time here, where he was completely ineffective. He might as well not have been there in 2008/09 and 11/12, and he was half-fit throughout 2007/08 and 10/11.
You say he was a much better big-game player than Henry and co - in cup finals, sure, he's got one of the best records ever. In the league? We were Chelsea's biggest rivals for the title throughout his first spell there, and he was consistently shite against us - scored 2 league goals in 13 appearances, one of which was offside and the other actually came in 2014 in his second spell. Against Benitez's Liverpool, he's got 2 in 13. Definitely loved spanking Arsenal, I'll give him that.
Incredibly inconsistent player, whose goals on the big stages paper over a very patchy league record. Absolutely no chance he's in the same league as Henry, Shearer, Aguero or Kane for me. Rooney, Van Nistelrooy and Van Persie also put together at least as many great seasons as Drogba did, as did others including Suarez, Tevez, Cole, Yorke and Vardy.