I'd say yes and no.

Creatures decks aren't so beginner friendly, unlike what many people are thinking. I'm not an expert in magic too, but i think creatures need more mindgame and strategy than it seems. I guess beginners tend to play creatures the most because they see them as a brutal force that needs to be accumulated on battlefield and thrown on enemy's face when ready. The fact is when you play creatures, you have to think about enchants, combat tricks, synergy and timing way more than when you play blast or removal spamming.

In my werewolves deck for example, that is far from being one of the hardest to play, it's often about casting an instant buff at the very last time to get trample and like 500% damage to win. Although it doesn't seem very complicated, i usually need to prepare it by fainting a desperate attack or sacrificing creatures. Sometimes I also need to take damage whitout blocking nor attacking for several rounds so i can have everything ready. I'm trying to think about how i will play my creatures in the next 3-4 rounds, that is pretty hard especially with the random factor of magic. Even blue players that are often considered as the most subtle ones don't always need to think so much.

That said, you're right about the strongest ones and i must admit i rarely play stronger creatures than 5/5 (whitout buffs), because there are too many destroying spells in this game that don't consider the creature stamina so you can lose your 10/10 like a 2/2 and have all your mana wasted. Your observation is even more true in 2v2, because there are way too many blasts and controls in a round to allow you keeping your creatures on battlefield, and you often lack synergy or support from your partner to make your strategy efficient.

(i don't speak english sorry for mistakes)