My question is based on the fact that PowerPoint, Photoshop and Illustrator have been routinely used to generate scientific figures as final PDF files, either single Images or for the final Assembled Figure for a paper, so I'd like to hear about experiences, and point of view regarding which one is best for good quality scientific figures publication, as well as advice, and why.
"Images" refers to either photos (e.g. IHC, IF, confocal imaging etc), graphs (e.g. qRT-PCR data, microarray hierarchical clustering etc) and tables.
"Assembled Figure" is the final figure X that you create before uploading on the journal page (it could be a collage of images (i.e. photos, graphs and tables).
Also, tutorials or suggested literature are welcomed.