I am the guy working on Garen. I'm also the guy that worked on Ashe. What about the changes to Garen is making you unhappy?
Edit:
I read through some responses. This won't answer all questions and address, but it may get a few of them. These aren't direct quotes, but more summaries of the kinds of questions people are asking.
Q: Why the W stack mechanic instead of the 20% Armor/MR?
A: The stacking mechanic is quite achievable in your average game (120cs), and it reinforces the value of minion kills on a champion intended to be good for beginner players.
Q: Why flat resists on W instead of percent?
A: Flat synergizes better with Health stacking, and Health is present on almost all the items Garen builds. By affording him this synergy, he'll have his baseline defenses covered (lots of Health and some resists), and be able to grab an extra offense or luxury item.
Q: Why does Q silence duration need to be nerfed?
A: Having people sit in a Judgment that deals immensely more damage than it used to for basically the whole duration is insane. Shorter silence duration means more play for opponents, but also more room to pump damage into the Judgments.
Q: Why do I need to put points into W to stack it?
A: You don't, that was removed because it was tedious.
Q: Why is he slowed while hitting champions with Judgment?
A: He's not anymore. That was removed sometime earlier this week.
Q: Why are you just nerfing Garen on basically every way skill?
A: Heavy tuning requires give and take. These changes are not intended to be net nerfs to Garen, and I am all but positive they are actually very significant buffs. Most questions like this seem to be due to change aversion or misunderstanding more than anything else.
Q: Why did you take the Tenacity from W? It's so boring now.
A: Yes, it was boring before, and it's even more boring now. However, it's important that Tanks and CC supports feel good about their efforts in peeling the tanky, high damage juggernauts, because with the changes being given to them, if they're not peeled, people start dying around them fast.
Q: REVERT EVERYTHING!!!!
A: This is so clearly not going to happen, and when people post things like that, anything important to them that they are actually trying to say easily gets glossed over.
Q: Why do you keep acting like Garen is difficult to peel?
A; Garen, though historically seen as easily managed, has a few more things going for him that he didn't use to have. First, as of a few patches ago, slows don't stack anymore. Second, Dead Man's Plate gives him a lot of chase/stick later on in games. Third, Black Cleaver stacks even faster now that Judgment ticks faster. This whole package can make him substantially stickier than he used to be.
Q: Why does he deal reduced damage with Judgment when hitting multiple targets?
A: Judgment does a real substantial amount of damage, so giving it some optimization cases for Garen and opponents to play around is good for the character. Though I'm confident he won't deal too little damage following these changes, that's easy number tuning.