The midfielder says their impressive goal tally shows they are fighters.
The Hammers are flying high this season and find themselves perched third in the Premier League table after 10 games, with Saturday’s win over Chelsea the latest to be enjoyed against one of last season’s top four finishers.
A number of factors have been credited with sparking their upturn in fortunes, with a successful summer transfer window in particular having helped them to progress from last season.
When asked what he believes has been key to their success so far, though, Obiang says the feel-good factor off the field has been crucial.
“The good feeling that has been created in the locker room,” he told Marca.
“The great season we're doing has caused expectations to soar and being compared with the great, but we must continue working.”
One particular strong point for the side so far this season has been their ability to find the back of the net, with them currently standing second in the goals scored table.
The Hammers had struggled for goals in recent seasons under former boss Sam Allardyce, but in contrast, Slaven Bilic has a number of proven forwards at his disposal.
His midfielders have also been chipping in with the odd goal, with Dimitri Payet in particular finding assists and strikes of his own to be in plentiful supply.
And Obiang is enthused by the club's goal scoring ability, saying it shows that they are 'fighters', with Payet and fellow midfielder Manuel Lanzini picked out for special praise.
“That means that we are good fighters,” he added.
“Whenever we get ahead, we win. People above highlight Payet. He is a superstar, a kind of Di Maria. We must also review Lanzini. I would liken him to Iniesta.”