The variegated one looks like variegated cuban oregano. Your firespike looks like it's in rough shape. It almosts seems like some kind of burn...maybe from fertilizers?

Here's some info on firespike from Floridata. Those pale leaves w/ dark veins suggest it may need fertilizing...

http://floridata.com/Plants/Acanthaceae/Odontonema%20strictum/214

The 'spinach' looks like it may be a chenopodium, but it doesn't look like any 'true' spinach I'm aware of. It looks closer chenopodium album, which is related to & used like spinach.

Pale leaves with dark veins are usually indicative of a magnesium deficiency. I'd give it some all-purpose fertilizer and also sprinkle a cup of Epsom salts around the dripline (the very edge of the where the limbs reach to.) so it can absorb it better. The brown edges look like it's dying of thirst.

Cant say if any are true oregano - I'd have to smell a leaf but none are basil. Basil leaves have shiny leaves and if course smell like basil.

BTW there are several varieties of oregano that pass for greek oregano the most common one being Origanum vulgare. But true Grerk oregano, like what we grew and used in Greece where I grew up is Origanum heracleoticum . It smells a lot stronger than the vulgare. Here is a link to my favorite herb nursery. Their plants are not cheap but of great quality and you can also try their seeds. Oregano is easy to start from seed.

http://companionplants.com/catalog/browse.php?f=4&key=C&sort=2a&page=10

Thanks everyone for your advice. I was very leary of the Basil too, but it's a really pretty plant and doesn't smell like Basil. The Oregano does smell like Oregano and tastes like to also. I have fertilized and put some Epsom Salts around my Firespike so I hope that it looks better soon. I was thinking about moving it to a sunnier spot. It only gets dappled sun in the morning.