My opinion on this isn't very strong, as I like SOME games for android.
The issues I see with android gaming usually fall under three categories: Freemium, "The" mobile mmo formula, and just plain boring.
Games I actively would support would be Badlands, the older zenonia games (The new ones were meh, and Zenonia S was the embodiement of the MMO formula being used to death), Redcon, Hoplite, Cartoon wars, Pixel Dungeon and the mods/variants (Yet Another was hands-down my favorite), and Buriedbornes. These games held my interest because they had a lot of gameplay, didn't annoy you with ads, and weren't the god-awful mmo formula. Zenonia and Redcon had story and all that, but the game mechanics were also very fun (It is the core of the game, after all). Other entries were pure gameplay. Buriedbornes was an old school game that had very unique mechanics, Pixel dungeon was the pinnacle of roguelike and had a ton of fan-made variants, Cartoon wars was honestly very entertaining, Hoplite had a challenging chesslike style, and badlands was a nice platformer that had ambiance as well as nice mechanics.
... Now for what I deem to be a shit android game. To start off, and sorry if you disagree, but Square Enix ports, particularly final fantasy. The game is there, yes. The interface (and art, if it was remade) is some OpenGL cheaply made abortion though, they didn't even try to make it look nice.
There are many games that just don't fit my interest, or I find just boring/worthless (*ahem* minecraft spinoffs). However, one trope that sickens me is the MMO formula on a lot of games. This is usually more of a jrpg android mmo formula, but I also include Game of War. Ya know, the game that makes ads that don't even begin to show the real game, spending millions of dollars to deceive everyone to play a shit game that influenced this cancerous trope.
The plain boring section eats up a good 98% of google play from my viewpoint, they just aren't fun. You play a spinoff cookie clicker for a bit, whatever, play a half baked rpg with anime tiddies shoved in your face, whatever. That isn't entertaining. For the most part, you are better off emulating a handheld device like GameBoy Advance, but you do find that magical android game that isn't boring once in a while.