I rarely get a successful defense nowadays. I imagine the successes are against the mid-level people who are unaware of Stray Cat, Pegasus, or some other fast unit and don't have good crowd control set up.
My defense isn't terrible exactly. I have a Chimera, two Dorothy, all the treasure monsters and a few other tough ones. None of them are above level 17 but all my monsters get 9% extra hp from my lvl 46 Bestial Roar. I guess if I focused on maxing some of my 4-star monsters things might be different? It just seems like defense units roll out too slowly, allowing them all to be focus fired down in a heartbeat.
Have any of you high-lvl players come across a tough-to-beat defense? It just seems like once you get a good 4 or 5 star unit and some great allies with equally beefy units there isn't a defense that can stand up to you.
*EDIT* As it stands I've taken to hiding my money in trades until I can figure out a stronger defense. No sense in losing it to people who try to farm you and call on their allies to attack you just because you attacked them back lol.