Winter horror in my garden

Here we are, back in my garden. On Wednesday I shared photos of the good stuff, today it's time to look at the not so good. First subject, my big Agave weberi in the driveway, that's it on the far left. The smaller agave in the tub is an Agave americana that went into the garage during the December cold. I wouldn't have thought the unheated garage would have made that much of a difference but the A. americana is fine, and...... the entire center of the Agave weberi is now turning soft and rotting. This plant has been growing here for years! It looks like this will be the end though.
Following the same path I took in that earlier—winter interest—post, I've now walked down the driveway to the front garden and we're looking at one of my two Feijoa sellowiana (pineapple guava). It's about 80% defoliated I have no doubt all the leaves will eventually fall.
I'm also pretty sure that by the summer months they'll have regrown. This happened once before after a bad cold spell, back in 2014 if memory serves. The leaves just add to the winter mess, as they're very thick, don't break down easily and I have to clean them up.
Here's another agave that's taken a turn for the worst. If this was say, April, I'd have more hope, but we've still got a lot of rain and more cold (a couple of nights in the low 20's coming up) to help that rot grow. I believe this is an Agave salmiana.
As if the weather wasn't providing enough plant horror, the damn rabbit(s) are creating another nightmare. That empty patch next to the sidewalk, it used to be solid with black mondo grass, sedum, and sempervivum. 
They've ate it bare. I'm so angry!
That's an expensive snack you little furry terrors!
Across the sidewalk there are signs of munching on my cute little Agave x leopoldii.
An agave manages to hang on and still look good after the crazy weather and then gets eaten. I hope it hurt.
Weather damage on the Agave parrasanna 'Meat Claw'.
More rabbit damage on this Agave bracteosa—but look! It's fighting to make a rebound and new growth is pushing out of the center.
More ugly! Serious ugly. 
Times two. One of these is an Agave salmiana, I'm not sure what the other is.
It does not look good for this poor plant.
Cordyline Cha Cha, starting it's death decline. This is one of two that I have, I'll end up cutting them back to the ground and they'll ever so slowly return. A couple years from now (unless next winter is nasty) they'll look good again.
This is the hardest pill to swallow. The bad spot on the large Agave ovatifolia 'Frosty Blue' next to my front steps keeps growing...
There were Cordyline australis here. The tops started to collapse so I chopped them. I'm pretty sure I've seen these sprout new growth from somewhere on the side of the trunk, so I thought I'd see if they wanted to go that route. If not I'll cut these down and the new bottom growth (unfazed by the cold) can take over.
Poor little Clarity Blue Dianella, both eaten by the rabbit(s) AND attacked by the cold.
We're in the back garden now and assessing the astelia damage. The plant on the right—Astelia 'Red Devil'—is one of the survivors, the plant on the left however is slowly melting.
I'm holding out hope that part of it lives, but I can tug on the leaves of this side part and they pull right out.
The same here. On the right is 'Red Devil' and it's solid, the one on the left is not.
And here, the leaves pull right out. Damn. I wish I could remember which ones these are, but that knowledge was lost to time.
This mass of ugly is part astelia (dead) and part Corokia virgata 'Sunsplash' which is hanging on to some of it's leaves (as well as some black mondo, leaf litter and who knows what else).
This Corokia virgata 'Sunsplash' however is a crispy mess.
The pyrrosia. Oh the pyrrosia. I've got these planted all over my garden (on account of the fact I LOVE them). Several plants are fine, or have minimal damage, unfortunately this mass planting of P. lingua, P. lingua 'Variegata', and P. hastata was really damaged by the cold, wind and ice (not to mention they're covered in leaves falling from the Stachyurus salicifolius and Maytenus boaria 'Green Showers').
While these are ferns, they're not the type that will replace the damaged fronds with a new flush of growth come spring. Their leaves sprout along a creeping stolon.
It's going to be really painful to cut off the damage and leave these plants looking bare. 
Several aspidistra are looking horrible as well, and also semi-buried by fallen leaves.
These plants only put out a couple of new leaves each year, so it's going to take awhile for them to rebound—assuming they can.