If you think starting resource/tower/wall has no major impact on the game, you would be wrong.
Say I play a Brigand theme deck that works around reducing opponent stocks, having a bigger stocks early on makes my strategy less useful.
Bigger starting stock etc also reduce the chance of successful fast rush double edge kind of deck, with cards like Army of Volunteer, Searing Fire
Also, different starting tower could effect cards like Lookout Tower who works differently depending on your own tower value
Bigger tower also leads to direct tower killing strategy less attractive
Bigger wall means wall destruction card are more appealing, also it delay the chance to play Charge cards
Both could lead to extra card balancing issue
If you want to play big costly powerful card, you need to work your way up by saving them instead of having a big surplus right at the beginning.
To brzydki: It seems you have only play under 50 games (unless this your extra account). If you are bored, why not change your strategy? You only have 2 decks instead of 8, that means you have a lot more to explore!
Try out different cards and aim for different victory condition (there are 4 types, I bet you havent done all 4), and have fun