Size and passion appear to be the most marked differences between the two clubs.
Rangers picked up on Brentford and Mark Waburton's uncoupling in the summer by bringing the talented manager to Ibrox. Charged with getting the club back in the Scottish Premiership, he has done an excellent job so far.
Rangers are currently top of the Scottish Championship and look like the favourites to earn promotion, although Hibernian remain in close chase.
It is Warburton's second promotion-chasing campaign in a row. He nearly took Brentford to a shock promotion last term.
Warburton appeared on Sky Sports News this week (23/02/2016) and was asked about the difference between Rangers and his former club Brentford. He stated:
"I think the focus on the papers, every day, is the main difference. Everyday you have 12-13-14 pages just on football so the focus is far more intense.
"You have to recognise that and the size of the crowd. Brentford had a 10 or 12 thousand crowd and now we have 45 or 50 thousand. Again you can get used to that.
"But really it is just the level of passion. It means so much to the supporters and the fans. We have to recognise that and it is really important to me."
It certainly seems that size is the main difference. Brentford is a wonderful football club but everything is bigger and more extreme at Ibrox - considering their place among the top two teams in the country's footballing history.
Whilst the passion of Rangers fans has always been a well known facet of Scottish football.
But Warburton has handled that transition seamlessly. Rangers fans will hope he continues to do so and takes the club back to the top tier of Scottish football.