The bonuses didn't really matter much in the original game.
The Spanish could only burn so many cities, and each city they burnt decreased their score. Besides, you'd spend so much of your time killing natives that it lent itself to neglecting the infrastructure of the actual colonies themselves. It was more, lets buy lots of soldiers with all our plundered gold; and then when there were no more natives to kill, let's declare independence and sick all of our soldiers on the king. You didn't really get into the feel and purpose of the game.
The Dutch recieved an initial commerce bonus, but eventually this didn't matter bcz the market became over flooded with goods and the prices all dropped to nothing, which happened to all of the other civs too.
The natives got angry a little slower with the French, but eventually they would get angry anyway, and war would break out.
The English recieved more colonists than you knew what to do with, and eventually you'd have them just sitting around waiting to be trained in the university or waiting for muskets to be built.
The same maxes would be met no matter what civ you played as. You always ended up fighting indians (or simply having your pioneers killed and your settlements raided), you always maxed out the colonist limit at 255, and inundating the European markets until the point of goods were worthless. And of course, you had well over 100,000 gold by the time you declared independence and your army was larger than the King's small force of hapless of victims. I don't think I ever fought a revolution longer than a handful of turns, or ever lost a colony. The game was a little too easy. But, I loved it nonetheless.
BTW. My favorite tactic was not to land on the east coast, but to sail all the way around to the west side, settle, and have the region all to myself.