This sounds a lot like my daughter, who was born in 12/06...except it was "spiders in my nose" and then "spiders in my ears"--so we knew it was just another ploy!
What my husband and I have done is beginning about 15 minutes before the bath, we start telling her exactly what's going to happen next. "Lucy, in 15 minutes we're going to go upstairs to take a bath and play." Then later we'll say something like, "Okay, 5 minutes, then play in the bath before jammies" During the bath we transition her more, "We'll stay in here a few more minutes, then it's Jammie time", etc.
I think she likes the consistency, the predictability, the attention, the expectations. We always tell her three books, then during the transition between books 1 and 2, we'll say "two more, then bed", then "okay, this is the last book and after that it's lights-out-bedtime".
When we put her in her bed, most nights she's wiped out and just ready to sleep. Other nights, she looks for the excuses. I never "ask" her anything, I just let her "tell me" what she needs to "tell me" and then I say something calming like, "Well, maybe the spiders in your nose are very tired and want you to settle down and rest so they can leave--and I bet they'll be gone in the morning!" I never act overly concerned, because that is exactly what she is hoping to get out of me.
Her new one is, "I want yogurt, or I want milk" So, we added that to the "pre-bath" routine. When she was having a rough go with molar teething a few months back, I put some chamomile tea in a bottle with a dropper (available at a health food store) and gave her drops of chamomile at bedtime. Well--she loved it, (probably the routine of it and mama telling her this would help her sleep) and she still asks for it sometimes. It's safe, and it really is calming (although it's diluted so I'm 99% certain it's more of a placebo) so the drops are still available.
Mostly, she just wants to know we're still attentive. If she fusses too much, we will go up after 20-30 minutes or so, just one of us usually will quietly sit next to her and say something like, "You NEED to sleep now, it's very important for your body"...Again, I think she just wants that reassurance.
We used to let her cry for longer, but once we tried it once (going back after 20 min.) and it settled her so quickly, we realized it was just that "one last thing" she needed.
Another tip I learned is to make it part of her responsibility to sleep (or do anything for that matter). "You need to...." as opposed to, "mama needs you to..." or "mama wants you to..." It is something I do with the middle schoolers I teach, so I figured it would probably apply to a toddler just as well ;)
Good luck! She's smart and will probably resist for a while, but consistency will work in your favor!